Question

Expand the following using suitable identity (3x+2y+7)^2
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Answer 1

Answer:

(a+b+c)² formula should be used to expand

Answer 2

$(3x + 2y + 7) {}^{2} = (a + b + c) {}^{2}$

$(5xy + 7) {}^{2}$

$(12xy) {}^{2}$

$144xy$