IF 16x²+9y²=129 and xy=4 find the value of 4x+3y
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(4x+3y)^2 =16x^2 +9y^2+24xy
By substituting the value
129+24*4
(4x+3y)^2=225
4x+3y=15
Hope it helps
By substituting the value
129+24*4
(4x+3y)^2=225
4x+3y=15
Hope it helps
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