Introduction

The standard form of a quadratic equation is

**Example 1 **Find the *a*, *b*, and *c* values of the equation: *x*^{2} - 3*x *= 28.

*Step 1.* Put the equation in standard form.

1*x*^{2} - 3*x* - 28 = 0

*Step 2.* Identify the *a*, *b*, and *c* values.

*a* = 1*, b* = -3, *c *= -28

**Example 2 **Find the *a*, *b*, and *c* values of the equation: 5*x*^{2} = -45.

*Step 1.* Put the equation in standard form.

*5x* ^{2} + 0*x* + 45 = 0

*Step 2.* Identify the *a*, *b*, and *c* values.

*a* = 5*, b* = 0, *c* = 45