Question

Simplify :– (2a² – b²) ²​

Answer 1

Answer:

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

Step-by-step explanation:

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

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

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