Factorise
2х^2 — 3x— 14

Answers

Answer 1

Answer:

(x + 2)(2x - 7)

Step-by-step explanation:

Given

2x² - 3x - 14

Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 2 × - 14 = - 28 and sum = - 3

The factors are - 7 and + 4

Use these factors to split the x- term

2x² + 4x - 7x - 14 ( factor the first/second and third/fourth terms )

= 2x(x + 2) - 7(x + 2) ← factor out (x + 2) from each term

= (x + 2)(2x - 7)

Thus

2x² - 3x - 14 = (x + 2)(2x - 7) ← in factored form


Related Questions

what is the value of x that satisfies the following equation
1 over 3 ( x - 9) = 2 over 3 (2x + 6)​

Answers

Answer:

x=-7

Step-by-step explanation:

BRAINLIEST PLS

A plastic ball with a volume of 19.7
cm3 has a mass of 15.8 g. Would this
ball sink or float in a container of
gasoline (density of gasoline is 0.66-
0.69 g/cm3).

Answers

Answer:

as the density of the plastic ball is greater than the density of the gasoline it sinks

Step-by-step explanation:

D = 15.8 / 19.7

D = 0.80 g / c ^ 3

0.8> (0.66-0.69)

The density of the plastic ball is greater than the density of gasoline, the ball would sink in a container of gasoline.

Given that a plastic ball with a volume of 19.7 cm³ has a mass of 15.8 g.

We need to check if the ball sink or float in a container of gasoline if the density of gasoline is 0.69 g/cm³.

To determine whether the plastic ball would sink or float in a container of gasoline, we need to compare the density of the ball with the density of gasoline.

Density is defined as the mass of an object divided by its volume. In this case, the density of the plastic ball can be calculated as:

Density of ball = Mass of ball / Volume of ball

Given that the mass of the ball is 15.8 g and the volume is 19.7 cm³, we can calculate the density of the ball:

Density of ball = 15.8 g / 19.7 cm³

Density of ball ≈ 0.8 g/cm³

Now, we can compare the density of the ball with the density of gasoline, which is stated to be between 0.66 g/cm³ and 0.69 g/cm³.

Since the density of the ball (0.8 g/cm³) is greater than the density range of gasoline (0.66-0.69 g/cm³), the ball would sink in a container of gasoline.

Learn more about Density click;

https://brainly.com/question/29775886

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I am doing a science project and need a fun or short title. The project is on whether filtered water affects plant growth. Any creative title ideas?

Answers

Answer: Water: The battle between the clean vs the dirty :P

Step-by-step explanation:

(5i-3)(9i+1)
Answer must be in standard form

Answers

Answer:

-48-22i

Step-by-step explanation:

You are given the following sequences: Sequence A: 5, 11, 17, 23... Sequence B: 4000, 1000, 250, 62.5... Part A: Determine whether each sequence is arithmetic, geometric (2 pts) Part B: Write an explicit formula for each sequence (6 pts) Part C: Find the 6th term of each sequence (2 pts)

Answers

Answer:

I believe the first is arithmetic because it has a difference Of 6 between each number. The second is geometric because each number is divided by 4 to get the next number

Step-by-step explanation:

5, 11, 17, 23, 29, 35. (Difference of 6)

4000, 1000, 250, 62.5, 15.62, 3.90 (divide by 4)

As for the formulas I’m not sure, but I I would guess something like

an=6n-1

an=n/4

I am not sure about the formulas though

I need help plz answer this

Answers

Answer: A. (5)(5x+2y)

Step-by-step explanation:

Mofor spent half of his weekly allowance on
clothes. To earn more money his parents let
him clean the oven for $8. What is his
weekly allowance if he ended with $15?
Please explain how you got the answer.

Answers

His weekly allowance would be $14 ; first you have to do 15-8= $7, because he got 8 dollars from cleaning the oven. Then you multiply the $7 by 2 because he had this much left after buying clothes, making his allowance twice as much, so 7 x 2= $14

according to exponent rules, when we multiply like bases, we ______ the exponents

Answers

You would add the exponents.

Example: 4x^2(5x^2)= 20x^4

Solve the equations by substitution method: A. 2x-y-3=0 and 3x+4y=65.​

Answers

Step-by-step explanation:

[tex]\sf 2x-y-3=0\dots \dots (1)[/tex]

[tex]\sf 3x+4y=65 \\ \implies\sf 3x+4y-65=0 \dots\dots(2)[/tex]

from eq (1)

[tex]{:}\longrightarrow[/tex][tex]\sf 2x-y-3=0 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 2x-3=y [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf y=2x-3 \dots\dots(3)[/tex]

Substitute the value in eq(2)

[tex]{:}\longrightarrow[/tex][tex]\sf 3x+4y-65=0 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 3x +4 (2x-3)-65=0 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 3x+8x-12-65=0 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 11x-77=0 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf 11x=77 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf x={\dfrac {77}{11}}[/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf x=7 [/tex]

Substitute the value in eq (3)

[tex]{:}\longrightarrow[/tex][tex]\sf y=2x-3 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf y=2 (7)-3 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf y=14-3 [/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf y=11 [/tex]

[tex]\therefore[/tex][tex]{\underline{\boxed{\bf (x,y)=(7,11)}}}[/tex]

-6 5 4 3 2 1
1 2 3 4 5 6
1
1-2
-3
Water Slide
Restrooms
-5

Answers

Answer:

I am sorry what are you showing

Solve 3x2 + 4x = 2. ??​

Answers

Answer: Answer: The answer should be x = -1. Hope this helps!

What is the equation of the line shown in the coordinate plane below?
Identify if the following relations are functions (yes or no)? Identify the domain and range for each.
{(-6, 5), (-4, 3), (-1, 0), (4, 3)}

Answers

Answer:

Step-by-step explanation:

domains:-6,-4,-1,4

Range:5,3,0,3

will you include the image of the line so i can answer the rest of the question?

i need help with the group 1 and group 2, what do i write in the boxes :((

Answers

I don’t see anything it’s a black screen

Ok now these are my very last points please help

Answers

Answer:

wait what grade are you in ?

What is the factored form of the expression 24x + 64y?

Answers

Answer:

8(3x+8y)

Step-by-step explanation:

Answer:

24x + 64y

Step-by-step explanation:

Keesha will mow grass for $8 per hour write in standard form

Answers

Answer: y = 8x

Step-by-step explanation:

y is inversely proportional to x. Given that y = 12 and x = 6. Find the value of y when x = 8.

Answers

Answer:

9

Step-by-step explanation:

formula for inverse proportion is y = [tex]\frac{k}{x}[/tex]

k is the constant of probability

to find k,

y is 12, x is 6

12 = [tex]\frac{k}{6}[/tex]

so x = 12 × 6

∴ k is 72

so y = [tex]\frac{72}{8}[/tex]

∴ y is 9

Marissa bought 4 cans of corn and 8 cans of green beans for a total of $7.00. Bob bought 8 cans of corn and 7 cans of green beans for a total of $8.60. Determine how much each can green beans cost.

Answers

Step-by-step explanation:

1 can of corn = c

1 can of green beans = b

Marissa-> 4c+8b=7

Bob-> 8c+7b=8.60

form a simultaneous equation:

4c+8b=7

8c+7b=8.60

find a common coefficient, e.g. make the number of cans of corn that Marissa has, equal to the number of cans of corn that Bob has, so you would multiply the top equation by 2, so both people have 8 cans of corn

8c+16b=14

8c+7b=8.60

now you can cancel out the cans of corn, and subtract the second equation from the first one, so you would get:

16b-7b=9b

14-8.60= 5.4

so, 9b=5.4, and b= 0.6

so 1 can of green beans would cost $0.60

A.
B.
C.
D.

Help me please!!

Answers

It's B!!!           ik cuz i ggogled it lol

Answer:

I think the answer is B. $92

Step-by-step explanation:

$80 time (115 on calculator will give you 9200

What is -19 equal to

Answers

Answer:

-19

Step-by-step explanation:

6 divided by 2/3 = tell me thee answer in fraction form

Answers

Answer:

There wouldn't be a fraction form because its a whole number which is 9

Fill in the blank so that the relation is NOT A FUNCTION. Type a number only in the blank. The blank represents the x-value of the last ordered pair. {(4.5),(0, -1), (-7,0). (-3,8). ( type your answer .. -1)​

Answers

Can you provide a photo question ?

The volume of a solid cube is 1700m3.
Work out the surface area.
Give your answer rounded to 1 DP.

Answers

Answer:

849.7m2

Step-by-step explanation:

L= length

SA = surface area

volume = L x L x L

1700= L x L x L

find cube root

=11.93m

round off to 1 dp

=11.9m

SA= 6( L x L)

     = 6( 11.9 x 11.9)

       =6(141.61)

       =849.66m2

round off to 1 dp

=849.7m2

What is the value of ?

Answers

Answer:

65

Step-by-step explanation:

The difference between two same side interior angles of two parallel lines is 35 degrees. Find the measures of these two angles.

Answers

Answer:

  107.5° and 72.5°

Step-by-step explanation:

  x + y = 180          same side interior angles of two parallel lines add up to 180

  x - y = 35            

___________

     2x = 215                           add above two equations

       x = 107.5°                       divide by 2 to isolate x

Substitution to find y:

  x + y = 180

  107.5 + y = 180

              y = 72.5°

The measure of these two angles is 107.5° and 72.5°.

Given that,

The difference between two same-side interior angles of two parallel lines is 35 degrees.We need to find the measure of the two angles. Here we assume the two angles be x and y.

Based on the above information, the calculation is as follows:

x + y = 180          

And,

x - y = 35            

So, after solving it, it comes

2x = 215                            

x = 107.5°                  

So, y = 180 - 107.50 = 72.5

Therefore we can conclude that the measure of these two angles is 107.5° and 72.5°.

Learn more: brainly.com/question/13549064

Therefore we can conclude that

The sum of four times a number and negative three is twelve. What is the number?

2 1/4
3 3/4
-2 1/4
6

Answers

The second one because, 3 3/4 x 4 equals 15 which is the sum of 3 3/4 x 4, minus 3 equals 12.

Answer:

Dgfyb

Step-by-step explanation:

If p = 2 and q = 8, the value of p3 + V64 q ls____​

Answers

Answer:

518

Step-by-step explanation:

P = 2

Q = 8

p3 + 64q

Multiply "p" (which is 2) with 3

Multiply "q" (which is 8) with 8

Add the two numbers you get

And you have you answer

I hope this helps. :)

The answer I got was: {{ 2,8}}

Hope this helps, and happy holidays!!

on saturday keisha ran 2.175 kilometers. on sunday she ran 1.88 kilometers. how much farther did she run on saturday than on sunday?
Pls help fast I don't know what to do

Answers

Answer:

0.295

Step-by-step explanation:

you needed to subtract 2.175-1.88=0.295

How would I create a graph for this equation? The equation is c=4.95+3.99b

Answers

Answer:

C is your y intercept 3.99b is your slope

Step-by-step explanation:

Evaluate the expression for 1/2(2x+8)+6x and explain your process

Answers

Answer:

7x+4

Step-by-step explanation:

1/2(2x+8)

=x+4

x+4+6x

=7x+4

PLS GIVE BRAINLIEST

Answer:

7x+4

Step-by-step explanation:

1/2(2x+8)+6x

divide by 2 or multiply 1/2 it equals the same anyway

x+4+6x

add like terms

7x+4

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