Factor completely: −7x2 + 14x − 21

−1(x2 − 14x + 21)

−7x(x2 − 2x + 3)

−7(x2 + 2x − 3)

−7(x2 − 2x + 3)

Question

Factor completely: −7x2 + 14x − 21

 −1(x2 − 14x + 21)

 −7x(x2 − 2x + 3)

 −7(x2 + 2x − 3)

 −7(x2 − 2x + 3)

anonymous · Answer

Factor out a like term from the equation

anonymous · Answer

-308

anonymous · Answer

What is the like term you see in the expression?

anonymous · Answer

-7*2+14*-21

anonymous · Answer

Lol -308 though^^

anonymous · Answer

fuuny 
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anonymous · Answer

@jenniferjuice  have you figured out the answer yet?

jenniferjuice · Answer

not really :/

anonymous · Answer

Ok if we look at the expression given we can see the coefficients are 7, 14, and 21. Now we know what these 3 have in common is that they are divisible by 7. So the 1st thing we see is that we can factor out a -7

anonymous · Answer

You understand so far?

anonymous · Answer

The next thing you must do is look at the choices of answers you are given...the only two that old be possibly right are the last two

anonymous · Answer

Could*

anonymous · Answer

Next you have to look at the operators(signs) if we factored out a -7 then we have to see which answer when distributed will give us -7x^2+14x-21

jenniferjuice · Answer

so would it be ...  −7(x2 − 2x + 3) ?

anonymous · Answer

The answer would be  -7(x^2-2x+3) => -7x^2-14x+21

anonymous · Answer

Lol I mean -7x^2+14x-21.....Hess your correct

jenniferjuice · Answer

oh okay thanks ! :)

anonymous · Answer

Smh yes iPad keypad is messing up but last one is correct

jenniferjuice · Answer

haha okay :)