Sum
Simplify : (5a + 5b – c) (2b – 3c)
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Solution
(5a + 5b – c) (2b – 3c)
= 5a(2b – 3c) + 5b(2b – 3c) – c(2b – 3c)
= 10ab – 15ac + 10b2 – 15ac – 2bc + 3c2
= 10ab + 10b2 – 17bc – 15ac + 3c2
Concept: Multiplying a Polynomial by a Polynomial
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