Question
Find following products:
$ (2x - 3y)(2x - 3y)$
$ (2x - 3y)(2x - 3y)$
✓
Answer
$(2x - 3y)(2x - 3y)$
$ =(2 x-3 y)^2 $
$ =(2 x)^2-2 \times 2 x \times 3 y+(3 y)^2 $
$ =4 x^2-12 x y+9 y^2 $
$ =(2 x-3 y)^2 $
$ =(2 x)^2-2 \times 2 x \times 3 y+(3 y)^2 $
$ =4 x^2-12 x y+9 y^2 $
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