90x^2+1=18

Solution for 90x^2+1=18 equation:

Simplifying
90x2 + 1 = 18

Reorder the terms:
1 + 90x2 = 18

Solving
1 + 90x2 = 18

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + 90x2 = 18 + -1

Combine like terms: 1 + -1 = 0
0 + 90x2 = 18 + -1
90x2 = 18 + -1

Combine like terms: 18 + -1 = 17
90x2 = 17

Divide each side by '90'.
x2 = 0.1888888889

Simplifying
x2 = 0.1888888889

Take the square root of each side:
x = {-0.434613494, 0.434613494}