# The equation under the radical in the quadratic formula

Solve a quadratic equation using the quadratic formula. Step 1. Write the quadratic equation in standard form, ax2 + bx + c = 0. Identify the values of a, b, and c. Step 2.

## Solving Radical Equations

The quadratic formula x = − b ± b 2 − 4 a c 2 a is used to solve quadratic equations where a ≠ 0 (polynomials with an order of 2) a x 2 + b x + c = 0 Examples using the quadratic formula Example 1: Find the Solution for x 2 + −
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## Solving Radical Equations

This is still a radical equation. Isolate the radical expression. Raise both sides to the index of the radical; in this case, square both sides. This can be solved either by factoring or by applying the quadratic formula. Applying the quadratic

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