Factorise- x 4-1A- x2-1x-1x-1B- x2-1x-1x-1C- x2-1x-1x-1D- x2-1x-1x-1

The correct option is D (x2+1) (x 1) (x+1)By using square identity (a + b) (a – b) = a2 – b2 , we get x4 1 = (x2+1) (x2 1) = (x2+1)(x 1)(x+1) ...

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Factorisation by Grouping Terms

Factorise: x ...

Question

Factorise: x⁴-1

(x²+1) (x +1)(x+1)

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(x²+1)(x - 1)(x-1)

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(x²+1) (x - 1) (x+1)

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(x²-1) (x -1)(x+1)

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