18x^2-63=0

Solution for 18x^2-63=0 equation:

Simplifying
18x2 + -63 = 0

Reorder the terms:
-63 + 18x2 = 0

Solving
-63 + 18x2 = 0

Solving for variable 'x'.

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

Add '63' to each side of the equation.
-63 + 63 + 18x2 = 0 + 63

Combine like terms: -63 + 63 = 0
0 + 18x2 = 0 + 63
18x2 = 0 + 63

Combine like terms: 0 + 63 = 63
18x2 = 63

Divide each side by '18'.
x2 = 3.5

Simplifying
x2 = 3.5

Take the square root of each side:
x = {-1.870828693, 1.870828693}