8x^2-64+15=0

Solution for 8x^2-64+15=0 equation:

Simplifying
8x2 + -64 + 15 = 0

Reorder the terms:
-64 + 15 + 8x2 = 0

Combine like terms: -64 + 15 = -49
-49 + 8x2 = 0

Solving
-49 + 8x2 = 0

Solving for variable 'x'.

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

Add '49' to each side of the equation.
-49 + 49 + 8x2 = 0 + 49

Combine like terms: -49 + 49 = 0
0 + 8x2 = 0 + 49
8x2 = 0 + 49

Combine like terms: 0 + 49 = 49
8x2 = 49

Divide each side by '8'.
x2 = 6.125

Simplifying
x2 = 6.125

Take the square root of each side:
x = {-2.474873734, 2.474873734}