Question

If 2x + y = 14 and xy = 6, find the value of
4x^2 + y^2.
The question is also given in the image.
Kindly refer ​

Answer 1

Answer:

(a+b)^2= a^2+b^2+2ab

a=2x b=y

(2x+y)^2= 4x^2+y^2 + 4xy

14^2 -4×6= 4x^2+y^2

38-24=14

14 is your answer