Question

(a^2 -b^2)(a^2+b^2) - (a^2-b^2)^2​

Answer 1

Answer:

2*b^2(a^2 - b^2)

Step-by-step explanation:

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

We know that (x+y) (x-y) = x^2 - y^2

Here, (a^4-b^4) - (a^4+b^4-2*a^2*b^2)

2*a^2*b^2-2*b^4

Simply, 2*b^2(a^2 - b^2)

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Answer 2

Please see the attachment for answer.