if 3x-2y=4 and xy=2 find the value of (3x+2y)2
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Answer:
64
Step-by-step explanation:
(a-b)²= (a+b)²-4ab
4²= (3x+2y)²-4(3x)(2y)
16+24(XY)=(3x+2y)²
(3x+2y)²= 64
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