Question

square of (3x-4y) is​

Answer 1

Explanation:

${(3x - 4y)}^{2} = {(3x)}^{2} + {(4y)}^{2} - 2 \times 3x \times 4y \\ \\ = 9 {x}^{2} + 16 {y}^{2} - 24xy \\ \\ this \: is \: your \: required \: answer \\ \\ identity \: used \\ \\ {(a - b)}^{2} = {a}^{2} + {b}^{2} - 2 \times a \times b$

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