Question

4xsquare + 9y square = 40 and xy = 2 find the value of 2x + 3y​

Answer 1

Answer:

4x^2+9y^2=40

XY=2

(2x+3y)^2= 4x^2+9y^2+12xy

(2x+3y)^2=40+2×12

(2x+3y)^2=64

2x+3y=√64

2x+3y= 8

hope it helps you