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Factorise: X³–7X+6 |
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Answer» Step-by-step explanation: Let p(x)=x 3 −7x+6 From figure, we have p(1)=0 Thus, (x−1) is a factor of p(x) The other factor is x +x−6 =(x+3)(x−2) Therefore, x 3 −7x+6=(x−1)(x+3)(x−2) |
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