7x^2-28-18=10

Solution for 7x^2-28-18=10 equation:

Simplifying
7x2 + -28 + -18 = 10

Reorder the terms:
-28 + -18 + 7x2 = 10

Combine like terms: -28 + -18 = -46
-46 + 7x2 = 10

Solving
-46 + 7x2 = 10

Solving for variable 'x'.

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

Add '46' to each side of the equation.
-46 + 46 + 7x2 = 10 + 46

Combine like terms: -46 + 46 = 0
0 + 7x2 = 10 + 46
7x2 = 10 + 46

Combine like terms: 10 + 46 = 56
7x2 = 56

Divide each side by '7'.
x2 = 8

Simplifying
x2 = 8

Take the square root of each side:
x = {-2.828427125, 2.828427125}