How do you factor completely $5ab + 3ay + 5b + 3y$ ?

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Answer 1 · 2016-11-08T00:40:22

$5ab+3ay+5b+3y = (a+1)(5b+3y)$

Factor by grouping:

$5ab+3ay+5b+3y = (5ab+3ay)+(5b+3y)$

$color(white)(5ab+3ay+5b+3y) = a(5b+3y)+1(5b+3y)$

$color(white)(5ab+3ay+5b+3y) = (a+1)(5b+3y)$

How do you factor completely 5ab + 3ay + 5b + 3y5ab + 3ay + 5b + 3y?