Question

Find x, if √x +2y^2 = 15 and √4x - 4y^2=6

Answer 1

x = 52.2

Explanation:

Add 4x - 4y^2 = 36 and x + 2y^2 = 225

x + 2y^2 + 4x - 4y^2 = 225 + 36

5x = 261

x = 261/5=52.2