Q3 of 58 Page 118

Find the roots of the following equation:



⇒ 11(x2 - 3x - 28) = - 330


⇒ x2 - 3x - 28 = - 30


⇒ x2 - 3x + 2 = 0


We use the method of factorization to solve


⇒ x2 - 2x - x + 2 = 0


⇒ x(x - 2) - 1(x - 2) = 0


⇒ (x - 1)(x - 2) = 0


⇒ x = 1, 2


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