1.

X-1-(x-1)^2+ax-a factorise it so that the answer can be (x-1)(2-x+a)​

Answer»

ANSWER:

we have

x-1-(x-1)^2+ax-a

=(x-1){1-(x-1)+a}

=(x-1){1-x+1+a}

=(x-1)(2+a-x)



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