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There are multiple methods for solving quadratic equations, and here we practice identifying which method might be best to use in different cases. Of course, as you practice, you'll develop a preference for one method over another, and while you often have a choice, there are some problems that can only be solved using certain methods. The quadratic formula is a lot of work, but can be applied to any problem. Factoring is often the fastest, but can't always be used. If the "b" term is zero, consider isolating the x^2 term and then taking square roots of both sides (but remember to use both the +,  square roots!)
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Sample Problems (13)
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The Quadratic Formula
Problem 1 8,198 viewsSolve x² − 2x − 8 = 0 using the quadratic formula.

The Quadratic Formula
Problem 2 4,993 viewsSolve using the quadratic formula:
7x² − 2x − 8 = 0 
The Quadratic Formula
Problem 3 4,732 viewsSolve x² − 2x + 2 = 0 using the quadratic formula.

The Quadratic Formula
Problem 4 227 views 
The Quadratic Formula
Problem 5 203 views 
The Quadratic Formula
Problem 6 220 views 
The Quadratic Formula
Problem 7 193 views 
The Quadratic Formula
Problem 8 180 views 
The Quadratic Formula
Problem 9 201 views 
The Quadratic Formula
Problem 10 181 views 
The Quadratic Formula
Problem 11 193 views 
The Quadratic Formula
Problem 12 184 views 
The Quadratic Formula
Problem 13 201 views
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