# Factor a number, variable, or expression out of the polynomial shown below. 7x – 21

Factor a number, variable, or expression out of the polynomial shown below. 7x - 21

## This Post Has 10 Comments

1. puffley says:

7(x - 3)
Hope this helps! ðŸ™‚

2. jamesmith20 says:

Both 3x and 9 are a multiple of 3, so we can factor out a 3:
3x + 9 = 3 (x + 3)

3. nook4boo says:

X(5x+9)

x appears in both terms, so you can take it out

4. natlovesfood says:

This I quiet easy all u do is what I show u above I hope this help because I want to show help others
$Factor a number, variable, or expression out of the polynomial shown below. 7x - 21$

5. Serenitybella says:

20x^3 + 15xfactoring out 5x
5x(4x^2 + 3)

6. haleyrene3924 says:

$15x^{3}+20x=5x(3x^{2}+4)$

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7. Anshuman2002 says:

B is the answer cause when u put them all in that what i got

8. shenothomas688 says:

Factor out the (4x-5), which is the GCF to go from
x(4x-5) + 9(4x-5)
to
(4x-5)(x+9)

Note: (4x-5)(x+9) is the same as (x+9)(4x-5). The order of the factors does not matter. You can multiply in any order.

Therefore, the final answer is choice B

9. Yskdl says:

15x^{3}+20x=5x(3x^{2}+4) GOODLUCK

10. DisneyGirl11 says:

5x(3x^2 + 4)
Hope this helps! ðŸ™‚
(Again forget my profile picture :P)