Question

how do i factor by grouping
2x^4-32x^2 ?

Answer 1

don't really need to group, just factor GCF and then use difference of squares

Answer 2

hint, the GCF has a number and a power of x in it

Answer 3

so would it be 2x^2 ?

Answer 4

yep

Answer 5

for the gcf, now factor the remaining part

Answer 6

you can factor out the 2 and \[x ^{2}\],
and the equation becomes
\[2x ^{2} (x ^{2} - 16)\]