Quadratic Formula

Quadratic Formula

 $x=\frac{\left(-b\pm\sqrt{b^2-4ac}\right)}{2a}$  

The Quadratic Formula

What Does It Do?

• solves quadratic equations

• find x-intercepts (also called zeros, solutions, and roots)

Steps

• Set the equation equal to zero

• Identify a, b, and c

• substitute into the quadratic formula

• Do the math!

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