Question

factor completely: x^4-16y^4
a)(x^2-4y^2)(x^2+4y^2)
b)(x+2y)(x-2y)(x^2+4y^2)
c)(x+2y)(x-2y)(x+2y)^3
d)(x+2y)(x-2y)(x+2y)^2
e)(x+2y)(x-2y)^2(x+2y)^2

Answer 1

b)

Answer 2

thanks

Answer 3

My pleasure

Answer 4

us formula a^2 -b^2 =(a-b)(a+b)

in your case will be (x^2)^2 - (4y^2)^2