21x^2-11+1=0

Solution for 21x^2-11+1=0 equation:

Simplifying
21x2 + -11 + 1 = 0

Reorder the terms:
-11 + 1 + 21x2 = 0

Combine like terms: -11 + 1 = -10
-10 + 21x2 = 0

Solving
-10 + 21x2 = 0

Solving for variable 'x'.

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

Add '10' to each side of the equation.
-10 + 10 + 21x2 = 0 + 10

Combine like terms: -10 + 10 = 0
0 + 21x2 = 0 + 10
21x2 = 0 + 10

Combine like terms: 0 + 10 = 10
21x2 = 10

Divide each side by '21'.
x2 = 0.4761904762

Simplifying
x2 = 0.4761904762

Take the square root of each side:
x = {-0.690065559, 0.690065559}