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The "+, " symbol is read as "plus or minus," but in actually, it should be called the "plus AND minus" sign. It represents one expression that gets split into two that you need to simplify. Unfortunately, you can't literally do one OR the other. Following the order of operations, simplify the top of a fraction completely before you divide by the bottom.
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Concept (1)
Sample Problems (13)
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The Quadratic Formula
Problem 1 8,180 viewsSolve x² − 2x − 8 = 0 using the quadratic formula.

The Quadratic Formula
Problem 2 4,976 viewsSolve using the quadratic formula:
7x² − 2x − 8 = 0 
The Quadratic Formula
Problem 3 4,705 viewsSolve x² − 2x + 2 = 0 using the quadratic formula.

The Quadratic Formula
Problem 4 216 views 
The Quadratic Formula
Problem 5 192 views 
The Quadratic Formula
Problem 6 205 views 
The Quadratic Formula
Problem 7 179 views 
The Quadratic Formula
Problem 8 173 views 
The Quadratic Formula
Problem 9 187 views 
The Quadratic Formula
Problem 10 172 views 
The Quadratic Formula
Problem 11 181 views 
The Quadratic Formula
Problem 12 171 views 
The Quadratic Formula
Problem 13 190 views
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