Question

Expand (2x-3y)2 by using the formula (a-b)2 = a2 -2ab+ b2.
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Answer 1

Answer:

$4x^{2} - 12xy + 9y^{2}$

Step-by-step explanation:

$(2x-3y)^{2}$

= $[(2x)^{2} - 2.2x.3y + (3y)^{2} ]$

= $4x^{2} - 12xy + 9y^{2}$