Question

factorise m²+3m-88
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Answer 1

Answer:

By splitting the middle term

m² + 11m - 8m - 88

m(m+11) -8(m+11)

(m+11)(m-8)

Step-by-step explanation:

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Answer 2

$m {}^{2} + 3m - 88 \\ m {}^{2} + 11m - 8m - 88 \\ m(m + 11) - 8(m + 11) \\ (m + 11)(m - 8) \\ m + 11 = 0 \: or \: m - 8 = 0 \\ m = - 11 \: or \: m = 8$