Q1 of 53 Page 166

Factorising x2 + 6x + 8, we get

⇒ x2 + 6x + 8


⇒ x2 + 4x + 2x + 8


⇒ x(x + 4) + 2(x + 4)


⇒ (x + 4)(x + 2)

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