4x^2-6=42

Solution for 4x^2-6=42 equation:

Simplifying
4x2 + -6 = 42

Reorder the terms:
-6 + 4x2 = 42

Solving
-6 + 4x2 = 42

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + 4x2 = 42 + 6

Combine like terms: -6 + 6 = 0
0 + 4x2 = 42 + 6
4x2 = 42 + 6

Combine like terms: 42 + 6 = 48
4x2 = 48

Divide each side by '4'.
x2 = 12

Simplifying
x2 = 12

Take the square root of each side:
x = {-3.464101615, 3.464101615}