Subtract from .

Simplify .

Add and .

Add and .

Move all the expressions to the left side of the equation.

Subtract from both sides of the equation.

Subtract from both sides of the equation.

Subtract from both sides of the equation.

Subtract from .

Use the quadratic formula to find the solutions.

Substitute the values , , and into the quadratic formula and solve for .

Simplify the numerator.

Raise to the power of .

Multiply by .

Multiply by .

Subtract from .

Any root of is .

Multiply by .

Move the negative in front of the fraction.

The final answer is the combination of both solutions.

Solve Using the Quadratic Formula 7x-2x=5x+9x+12+8+x^2