5x-2y = 7 and xy=2, find the value of (5x+2y)^(2)
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(5x+2y)^2
=(5x-2y)^2+4xy
=7^2+4×2
=49+8
=57
=(5x-2y)^2+4xy
=7^2+4×2
=49+8
=57
Vrain:
thank you so much...
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57 is your answer thanks asking the question
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