Question

9a4 -24a2b2 +16b4 -256 factorize this please

Answer 1

Answer:

=[(3a)^2-2.3a^2.4b^2+(4b)^2]-(16)^2

=(3a-4b)^2-(16)^2

since a^2-b^2=(a+b)(a-b)

so,=(3a-4b+16)(3a-4b-16)

this is the answer