5x^2+4-40=0

Solution for 5x^2+4-40=0 equation:

Simplifying
5x2 + 4 + -40 = 0

Reorder the terms:
4 + -40 + 5x2 = 0

Combine like terms: 4 + -40 = -36
-36 + 5x2 = 0

Solving
-36 + 5x2 = 0

Solving for variable 'x'.

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

Add '36' to each side of the equation.
-36 + 36 + 5x2 = 0 + 36

Combine like terms: -36 + 36 = 0
0 + 5x2 = 0 + 36
5x2 = 0 + 36

Combine like terms: 0 + 36 = 36
5x2 = 36

Divide each side by '5'.
x2 = 7.2

Simplifying
x2 = 7.2

Take the square root of each side:
x = {-2.683281573, 2.683281573}