What is 12a^-15ab-16a+20b in factored form ??

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Nigel Tufnel · Answer 1 · 2018-09-30T02:02:54+0000

Since there are 4 terms you will "factor b y grouping"
3a(4 - 5b) -4(4 - 5b)

each term has a common (4 - 5b) to factor out
(4 - 5b)(3a - 4)