2x+3y is equal to8 and xy is equal to2gind the value of 4x square +9y square
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(2x+3y)²=4x²+9y²+6xy,
(8)²=4x²+9y²+6×2,
64=4x²+9y²+12,
64-12=4x²+9y²,
then
4x²+9y²=52
(8)²=4x²+9y²+6×2,
64=4x²+9y²+12,
64-12=4x²+9y²,
then
4x²+9y²=52
laksh7857:
thank
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