30x^2-23-40=0

Solution for 30x^2-23-40=0 equation:

Simplifying
30x2 + -23 + -40 = 0

Reorder the terms:
-23 + -40 + 30x2 = 0

Combine like terms: -23 + -40 = -63
-63 + 30x2 = 0

Solving
-63 + 30x2 = 0

Solving for variable 'x'.

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

Add '63' to each side of the equation.
-63 + 63 + 30x2 = 0 + 63

Combine like terms: -63 + 63 = 0
0 + 30x2 = 0 + 63
30x2 = 0 + 63

Combine like terms: 0 + 63 = 63
30x2 = 63

Divide each side by '30'.
x2 = 2.1

Simplifying
x2 = 2.1

Take the square root of each side:
x = {-1.449137675, 1.449137675}