Question

(2a-3b)²,Expand the given equation.

Answer 1

$\huge{HEY!! \: }$

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✔✔Refer to the following attachment:-

Answer 2

BONJOUR,
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we use identity here,

(a-b)^2 = a^2 -2ab +b^2
$(2a - 3b) {}^{2} \\ (2a) {}^{2} - 2 \times 2a \times 3b + (3b) {}^{2} \\ 4a {}^{2} - 12ab + 9b {}^{2}$