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(3x + 5) is a factor of the polynomial (a-1)x^(3)+(a+1)x^2-(2a+1)x-15. Find the value of 'a'. For this value of a'. Factorise the given polynomial completely

Answer»


ANSWER :a=4; (3x+5) `(x^2-3)=(3x+5) (x+sqrt3) (x-sqrt3)`


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