Question

Medal!
(x-b)(x+b)(x^2-b^2)

Answer 1

Do the first two first..

\[\large (x-b)(x+b) = x^2 +bx - bx - b^2 = x^2 - b^2\]

so it becomes

\[\large (x^2 - b^2)(x^2 - b^2)\]

Answer 2

So would the answer be
x^4 - b^4x^4 +b^4
@DanJS

Answer 3

\[(x^2-b^2)(x^2-b^2)=x^2*x^2-x^2*b^2-b^2*x^2+b^2*b^2\]

Answer 4

\[\large x^4 - 2x^2b^2+b^4\]

Answer 5

Thanks