Mathematics
Factorise the following:
ab2 + (a - 1)b - 1
Factorisation
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Answer
ab2 + (a - 1)b - 1
= ab2 + ab - b - 1
= ab(b + 1) - 1(b + 1)
= (b + 1)(ab - 1)
Hence, ab2 + (a - 1)b - 1 = (b + 1)(ab - 1).
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Factorise the following:
ab2 + (a - 1)b - 1
37 Likes
ab2 + (a - 1)b - 1
= ab2 + ab - b - 1
= ab(b + 1) - 1(b + 1)
= (b + 1)(ab - 1)
Hence, ab2 + (a - 1)b - 1 = (b + 1)(ab - 1).
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