How do you factor by grouping $a c - b c + a d - b d$ $ac - bc + ad - bd$ ?

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Answer 1 · 2015-04-29T15:43:30

$a c - b c + a d - b d$ $ac-bc+ad-bd$

$= (a c - b c) + (a d - b d)$ $= (ac-bc) + (ad-bd)$

$= c (a - b) + d (a - b)$ $= c(a-b) + d(a-b)$

$= (a - b) (c + d)$ $=(a-b)(c+d)$

How do you factor by grouping ac−bc+ad−bdac - bc + ad - bd ?