Question

factor completely: 4a^3-16a

Answer 1

hint: what's the greatest common factor between 4 and 16?

Answer 2

4

Answer 3

good!

now what's the common factor between a and a^3?

Answer 4

a?

Answer 5

yes!

now when we factor out 4a we get

4a(a^2 - 4)

know where to go from here?

Answer 6

No

Answer 7

hint: when we have a difference of squares we can factor it like so:

(A^2 - B^2) = (A+B)(A-B)

so

(a^2 - 4) = ???

Answer 8

it can't be simplified further

Answer 9

nope, try again

Answer 10

a-4??

Answer 11

nope

Answer 12

remember:

A^2 - B^2 = (A+B)(A-B)

a^2 - 4 = ???

Answer 13

hint: what does B equal?

Answer 14

4

Answer 15

nope.

Answer 16

hint: B^2 = 4 so B = ?

Answer 17

16

Answer 18

When your done Vocaloid, I have a question to ask you.

Answer 19

nope... one more time.

Answer 20

B squared is 4

what is B?

Answer 21

@John_Doe02125 go away and start your own question please, theyre helping me

Answer 22

ohhhhhh, b is 2