40x^2-39-40=0

Solution for 40x^2-39-40=0 equation:

Simplifying
40x2 + -39 + -40 = 0

Reorder the terms:
-39 + -40 + 40x2 = 0

Combine like terms: -39 + -40 = -79
-79 + 40x2 = 0

Solving
-79 + 40x2 = 0

Solving for variable 'x'.

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

Add '79' to each side of the equation.
-79 + 79 + 40x2 = 0 + 79

Combine like terms: -79 + 79 = 0
0 + 40x2 = 0 + 79
40x2 = 0 + 79

Combine like terms: 0 + 79 = 79
40x2 = 79

Divide each side by '40'.
x2 = 1.975

Simplifying
x2 = 1.975

Take the square root of each side:
x = {-1.405346932, 1.405346932}