1.

If (x + 1) and (x - 2) are factors of x^(3)+ (a + 1)x^2 -(b - 2) x-6, find the values of a and b. And then, factorise the given expression completely.

Answer»


ANSWER :a-1 and b=7; (x+1) (x-2) (x+3)


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