Q1 of 36 Page 24

Expand.

(m – 4)(m + 6)

(m – 4)(m + 6)= m2 + [(- 4)+(6)] m + [(- 4)× (6)]


{ ∵(x + p)(x + q)= x2 +(p + q)x +(p × q)}


= m2 +(6 – 4)m +(- 24)


= m2 + 6m – 4m – 24


= m2 + 2m – 24


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