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# Precalculus Examples

Step 1

Subtract from both sides of the equation.

Step 2

Subtract from both sides of the equation.

Step 3

Use the quadratic formula to find the solutions.

Step 4

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

Step 5

Simplify the numerator.

Raise to the power of .

Multiply .

Multiply by .

Multiply by .

Subtract from .

Multiply by .

Simplify .

Step 6

The final answer is the combination of both solutions.

Step 7

The result can be shown in multiple forms.

Exact Form:

Decimal Form: