Question

Bằng phương pháp nhóm hạng tử.

5x-5y+ax-ay

Answer 1

\(5x-5y+ax-ay\)

\(=5\left(x-y\right)+a\left(x-y\right)\)

\(=\left(x-y\right)\left(5+a\right)\)

Answer 2

\(5x-5y+ax-ay\)

\(=\left(5x-5y\right)+\left(ax-ay\right)\)

\(=5\left(x-y\right)+a\left(x-y\right)\)

\(=\left(x-y\right)\left(5+a\right)\)

Answer 3

5x-5y+ax-ay

<=>5(x-y)+a(x-y)

<=>(x-y)(5+a)