You can put this solution on YOUR website! 62.)
x^2 + x + sqrt(x^2 + x - 2) = 0
sqrt(x^2 + x - 2) = -x^2 - x
x^2 + x - 2 = (-x^2 - x)^2
x^2 + x - 2 = x^4 + 2x^3 + x^2
x - 2 = x^4 + 2x^3
0 = x^4 + 2x^3 - x + 2
No Solution
68.)
b^4 + 13b^2 + 36 = 0
No Solution