5x^2-3=142

Solution for 5x^2-3=142 equation:

Simplifying
5x2 + -3 = 142

Reorder the terms:
-3 + 5x2 = 142

Solving
-3 + 5x2 = 142

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 5x2 = 142 + 3

Combine like terms: -3 + 3 = 0
0 + 5x2 = 142 + 3
5x2 = 142 + 3

Combine like terms: 142 + 3 = 145
5x2 = 145

Divide each side by '5'.
x2 = 29

Simplifying
x2 = 29

Take the square root of each side:
x = {-5.385164807, 5.385164807}