Question

Find the product :
(I) (x+y) (x-y) (x^2 +y^2)
(II) (a^2+b^2) (a^4+b^4)(a+b)(a-b) ​

Answer 1

Step-by-step explanation:

(x+y)(x-y)(x²+y²)

=(x²-y²)(x²+y²). [(a+b)(a-b)=a²-b²]

=x⁴-y⁴