=2x^2+x+2x^2-x-1

Solution for =2x^2+x+2x^2-x-1 equation:

Simplifying
0 = 2x2 + x + 2x2 + -1x + -1

Reorder the terms:
0 = -1 + x + -1x + 2x2 + 2x2

Combine like terms: x + -1x = 0
0 = -1 + 0 + 2x2 + 2x2
0 = -1 + 2x2 + 2x2

Combine like terms: 2x2 + 2x2 = 4x2
0 = -1 + 4x2

Solving
0 = -1 + 4x2

Solving for variable 'x'.

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

Add '-4x2' to each side of the equation.
0 + -4x2 = -1 + 4x2 + -4x2
Remove the zero:
-4x2 = -1 + 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
-4x2 = -1 + 0
-4x2 = -1

Divide each side by '-4'.
x2 = 0.25

Simplifying
x2 = 0.25

Take the square root of each side:
x = {-0.5, 0.5}