3 years ago

What is the factor for x^2+3x-28

Mathematics

1 answer:

olga55 [171]3 years ago

8 0

The factor is
(x + 7) (x - 4)
You can actually do this with a calculator.

You might be interested in

Which expression is equivalent to 2cos^2(x/2)- cos(x)? Edge 2020

olchik [2.2K]

Given:

The expression is

$2\cos^2(\dfrac{x}{2})-\cos (x)$

To find:

The expression which is equivalent to the given expression.

Solution:

We have,

$2\cos^2(\dfrac{x}{2})-\cos (x)$

We know that,

$\cos x=2\cos^2 (\dfrac{x}{2})-1$

Using this formula, the given expression can be written as

$2\cos^2(\dfrac{x}{2})-\left(2\cos^2(\dfrac{x}{2})-1\right)$

$=2\cos^2(\dfrac{x}{2})-2\cos^2(\dfrac{x}{2})+1$

$=1$

Therefore, the given expression is equivalent to 1.

4 0

3 years ago

Wayne raked 30 bags of leaves in 3 hours.if he raked the same number of bags each hour,how many bags of leaves did he rake in on

MAVERICK [17]

Answer:

10 bags

Step-by-step explanation:

Take the number of bags raked and divide by the number of hours

30bags/ 3 hours

10 bags per hour

In 1 hour we can rake 10 bags

6 0

3 years ago

Solve for x. 9 2x-111 X = [?]

VashaNatasha [74]

Answer:

x=94

Step-by-step explanation:

I hope I'm correct. Here's my explanation: x+9 and 2x-111 would equal 180, hence the line (supplementary). So x+9+2x-111=180

x=94

hope this helps.

5 0

3 years ago

Read 2 more answers

Select all of the statements that are true about the following expression: 5x3+x4−8

Lapatulllka [165]

I think the correct answer is c

6 0

3 years ago

Suppose you use an app that randomly generates a number from 1 to 15.

Neporo4naja [7]

Answer:

4 out of 15

Step-by-step explanation:

6 0

3 years ago