Find the value of 4x² + 9y² if 2x + 3y = 18 and xy = 5
Answers
Answered by
1
Answer:
(2x+3y) square=18squre (both side squre)
4xsqure+9ysqure+12xy=18squre
putting value of xy
4xsqure+9ysqure+12*5=18squre
4xsqure+9ysqure=144-60
4xsqure+9ysqure=84
Similar questions