2x*x-9+2=0

Solution for 2x*x-9+2=0 equation:

Simplifying
2x * x + -9 + 2 = 0

Multiply x * x
2x2 + -9 + 2 = 0

Reorder the terms:
-9 + 2 + 2x2 = 0

Combine like terms: -9 + 2 = -7
-7 + 2x2 = 0

Solving
-7 + 2x2 = 0

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 2x2 = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 2x2 = 0 + 7
2x2 = 0 + 7

Combine like terms: 0 + 7 = 7
2x2 = 7

Divide each side by '2'.
x2 = 3.5

Simplifying
x2 = 3.5

Take the square root of each side:
x = {-1.870828693, 1.870828693}