1.

Factorise: X³–7X+6 ​

Answer»

<P>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  

2

+x−6

=(x+3)(x−2)

Therefore, x  

3

−7x+6=(x−1)(x+3)(x−2)



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