Question

simplify (a^2 + 2b^2)^2-4a^2 b^2

Irrelevant/ nonsense will be reported

Answer 1

Answer:

= (a^2)^2 + (2b^2)^2 + 2 × 2a^2b^2 -(4a^2 b^2)

= a^4 + b^4 + 4a^2b^2 - 4a^2b^2

= a^4 + b^4