How do you factor by grouping $a x - a y - b x + b y$ $ax-ay-bx+by$ ?

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Answer 1 · 2018-06-18T19:46:08

We have

$a x - a y - b x + b y$ $ax-ay-bx+by$

$a (x - y) - b (x - y)$ $a(x-y)-b(x-y)$

$(a - b) \cdot (x - y)$ $(a-b)*(x-y)$

How do you factor by grouping ax-ay-bx+byax−ay−bx+byax-ay-bx+by?