11x^2-142-13=0

Solution for 11x^2-142-13=0 equation:

Simplifying
11x2 + -142 + -13 = 0

Reorder the terms:
-142 + -13 + 11x2 = 0

Combine like terms: -142 + -13 = -155
-155 + 11x2 = 0

Solving
-155 + 11x2 = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '155' to each side of the equation.
-155 + 155 + 11x2 = 0 + 155

Combine like terms: -155 + 155 = 0
0 + 11x2 = 0 + 155
11x2 = 0 + 155

Combine like terms: 0 + 155 = 155
11x2 = 155

Divide each side by '11'.
x2 = 14.09090909

Simplifying
x2 = 14.09090909

Take the square root of each side:
x = {-3.753785968, 3.753785968}