15x^2-1-2=0

Solution for 15x^2-1-2=0 equation:

Simplifying
15x2 + -1 + -2 = 0

Reorder the terms:
-1 + -2 + 15x2 = 0

Combine like terms: -1 + -2 = -3
-3 + 15x2 = 0

Solving
-3 + 15x2 = 0

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 15x2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 15x2 = 0 + 3
15x2 = 0 + 3

Combine like terms: 0 + 3 = 3
15x2 = 3

Divide each side by '15'.
x2 = 0.2

Simplifying
x2 = 0.2

Take the square root of each side:
x = {-0.447213596, 0.447213596}