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Science & Mathematics by Anonymous 2018-06-06 12:32:52
Social Science
Factorise 36ab+18b-6a+3?
4 answers
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Anonymous
36ab + 18b - 6a + 3 = 18b(2a - 1) - 3(2a - 1) = (18b - 3)(2a - 1)
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Anonymous
= 36ab + 18b - 6a + 3 = (36ab + 18b) - (6a + 3) = 18b.(2a + 1) - 3.(2a + 1) = (18b - 3).(2a + 1) = 3.(6b - 1).(2a + 1)
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Anonymous
36ab + 18b - 6a + 3 = 3(12ab + 6b - 2a + 1) = 3[6b(2a + 1) - (2a - 1)]
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Anonymous
3(12ab + 6b - 2a + 1)
