if 3x-4y=10and xy=2,find the value of 9x^2+16y^2
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3x-4y=10. xy=10
(3x -4y)²=9x²+16y²-24xy
10²=9x²+16y²-48
100+48=9x²+3y²
9x²+3y²=148
(3x -4y)²=9x²+16y²-24xy
10²=9x²+16y²-48
100+48=9x²+3y²
9x²+3y²=148
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