Factorize :
a3b - a2b + 5ab - 5b
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Given,
⇒ a3b - a2b + 5ab - 5b
⇒ a2b(a - 1) + 5b (a - 1)
⇒ (a2b + 5b)(a - 1)
⇒ b(a2 + 5)(a - 1).
Hence, a3b - a2b + 5ab - 5b = b(a2 + 5)(a - 1).
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