Factorise the equation below (1)

(1) x2 + 15x + 56 = 0

56 = 1 x 56, 2 x 26, 4 x 14, 7 x 8

7 + 8 = 15

Hence, factorised equation is (x + 7)(x + 8) = 0

Answered by Fraser T. Maths tutor

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