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| SIMPLIFYING
SQUARE ROOTS |
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When finding a stand alone
square root it is understood to find the principal square root which
is positive. But don’t confuse principal square root with solving
a quadratic equation. For example:
x2 = 9
Click on Method 1 or Method 2 to see the solution.
Note: Too many students say that the answer for x2 = 9 is 3 and are wrong. |
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