Question

if 2x+3y=10 and xy=5 find 4x^2+9y^2

Answer 1

Answer:

=> 4x^2+9y^2

=> (2x + 3y)^2

=> 10^2

=> 100 Ans.

Step-by-step explanation:

hope it's help you!!

Answer 2

Step-by-step explanation:

let ,(2x+3y)^2 =10^2

4x^2+9y^2+2*2x3y= 100

4x^2+9y^2 +12xy=100

4x^2+9y^2 + 12*5 =100

4x^2+9y^2+60=100

4x^2+9y^2 = 40

answer is 40