Difference between revisions of "Square root property"
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===Second format=== | ===Second format=== | ||
− | <math>(3x+4)^2=5</math> take the square root of both sides | + | <math>(3x+4)^2=5</math> |
− | <math>3x+4=\pm\sqrt{5}</math> isolate <math>x</math> | + | |
+ | take the square root of both sides | ||
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+ | <math>3x+4=\pm\sqrt{5}</math> | ||
+ | |||
+ | isolate <math>x</math> | ||
+ | |||
<math>x=\frac{\pm\sqrt{5}-4}{3}</math> | <math>x=\frac{\pm\sqrt{5}-4}{3}</math> | ||
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+ | |||
and those are the roots. | and those are the roots. |
Latest revision as of 22:55, 15 May 2014
The square root property is a method for solving quadratic equations.
Method
First we must convert the quadratic to either the form or .
First format
take the square root of both sides
so the roots are and .
Second format
take the square root of both sides
isolate
and those are the roots.