Question

Find the following by using Identity-II. (a2-b2)2​

Answer 1

Step-by-step explanation:

(a-b)2=a2+b2-2ab

(a2-b2)2= (a2)2+( b2)2- 2 ×a2×b2

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Answer 2

Step-by-step explanation:

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

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

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