Question

a3-a2-2a+8 Find the HCF or factorize​

Answer 1

Answer:

First expression = x2 - 3x - 18

                     = x2 - 6x + 3x - 18, by splitting the middle term - 3x = - 6x + 3x

                     = x(x - 6) + 3(x - 6)

                     = (x - 6) (x + 3)

Second expression = x2 + 5x + 6

                         = x2 + 3x + 2x + 6, by splitting the middle term 5x = 3x + 2x

                         = x(x + 3) + 2(x + 3)

                         = (x + 3) (x +2)

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