Question

If 3x + 2y = 12 and xy=6, find the value of 9x2 + 4y2​

Answer 1

Step-by-step explanation:

hope it may help u dear...

Answer 2

Step-by-step explanation:

xy=6

y=6/x-------1

put (1)in 3x+2y=12

3x+12/X=12

x+4/X=4

x^2-4x+4=0

x=2

put x=2in(1)

y=3

therefore,9(4)+4(9)=72

(or)

(3x+2y)^2-12xy=12^2-12(6)=144-72=72