2x*x-30=200

Solution for 2x*x-30=200 equation:

Simplifying
2x * x + -30 = 200

Multiply x * x
2x2 + -30 = 200

Reorder the terms:
-30 + 2x2 = 200

Solving
-30 + 2x2 = 200

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + 30 + 2x2 = 200 + 30

Combine like terms: -30 + 30 = 0
0 + 2x2 = 200 + 30
2x2 = 200 + 30

Combine like terms: 200 + 30 = 230
2x2 = 230

Divide each side by '2'.
x2 = 115

Simplifying
x2 = 115

Take the square root of each side:
x = {-10.723805295, 10.723805295}