21x^2-22=0

Solution for 21x^2-22=0 equation:

Simplifying
21x2 + -22 = 0

Reorder the terms:
-22 + 21x2 = 0

Solving
-22 + 21x2 = 0

Solving for variable 'x'.

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

Add '22' to each side of the equation.
-22 + 22 + 21x2 = 0 + 22

Combine like terms: -22 + 22 = 0
0 + 21x2 = 0 + 22
21x2 = 0 + 22

Combine like terms: 0 + 22 = 22
21x2 = 22

Divide each side by '21'.
x2 = 1.047619048

Simplifying
x2 = 1.047619048

Take the square root of each side:
x = {-1.023532632, 1.023532632}