Question

IF 3x-2y=7 and xy=3 then find the value of (3x+2y)2

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Answer 1

Answer:-

${(3x - 2y)}^{2} = {(3x)}^{2} - 2 \times 2y \times 3x \: + {(4y)}^{2}$

${(3x - 2y)}^{2} = 9 {x}^{2} - 12xy + 16 {y}^{2}$