Factor completely 3x3 + 6x2 - 24x. (4 points)

3x(x - 4)(x + 2)
3x(x + 4)(x - 2)
3x(x - 3)(x + 2)
3x(x + 3)(x + 2)

Question

Factor completely 3x3 + 6x2 - 24x. (4 points)
 	
	3x(x - 4)(x + 2)
	3x(x + 4)(x - 2)
	3x(x - 3)(x + 2)
	3x(x + 3)(x + 2)

solomonzelman · Answer

first take out the 'x'
what do you get after doing so>?

anonymous · Answer

3+6-24

compassionate · Answer

Eh, what he's saying is factor x throughout the expression via LCD/M

compassionate · Answer

$$3x^3 + 6x^2 - 24x = x(3x^2 + 5x - 24)$$ Now you're simply left with, on the right side, a binomial

compassionate · Answer

$$3x^2 + 6x - 24$$

anonymous · Answer

ok.. whats the next step?

compassionate · Answer

$$x(3x^2 + 6 - 24) = x(3x \pm  ?)(x \pm ?)$$ You are simply solving it as if it were a binomial.

anonymous · Answer

ok. let me write it out in my note book

nnesha · Answer

there is a typo $$x( 3x^2 + 6x -24)$$
suppose to be this

anonymous · Answer

._. ugh

nnesha · Answer

yep first step is to find GCF ( greatest common factor )
like they told you that x is one of common factor so basically you have to divide whole equation by x
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