Question

factorise the following algebraic expression ..
Please Give right answer..

Answer 1

x`4-256
= (x²)²-(16)²
=(x²+16)(x²-16) Ans

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Answer 2

X^4 - 256
=X^4 - (4)^4
=(X^2)^2 - (4)^2)^2. (a+b)(a-b)= a^2 - b^2
=(X^2 + (4)^2)(X^2 - (4)^2)
= (X^2 + 16)(X^2 - 16)

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