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Factorise the given polynomials: |
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Answer» X^3 + x^2 - 4X^2 - 4x - 5X - 5 = x^2 ( x + 1) - 4x(x +1) - 5(x +1) = (x +1)(x^2 - 4x - 5) = (x +1)[ x^2 - 5x + x - 5] = (x +1)[ x (x - 5) + 1(x-5)] = (x +1)(x - 5)(x+1) |
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