Question

factorize : a^4 -b^4
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Answer 1

Answer:

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

Step-by-step explanation:

a^4-b^4

=(a^2)^2-(b^2)^2                            [Pronounce^ as the the power of]

=(a^2+b^2)(a^2-b^2)                     [As a^2-b^2=(a+b)(a-b)]

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

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