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Thanks. One more question. How do I plug the numbers into the original equation to verify both answers work?
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Thanks. One more question. How do I plug the numbers into the original equation to verify both answers work?

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Never mind. I think I got it. Thanks.
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Good point about checking your work. I forgot to mention it.
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Good point about checking your work. I forgot to mention it.

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Example: Solve x^2=4 for x.<br />
<br />
x^2=4<br />
x^2-4=0<br />
(x+2)(x-2)=0<br />
x+2=0 &nbsp; &nbsp; &nbsp;or &nbsp; &nbsp; x-2=0<br />
&nbsp; &nbsp; x=-2 &nbsp; &nbsp; or &nbsp; &nbsp; &nbsp; &nbsp;x=2<br />
<br />
<br />
How to solve this? Thanks.<br />
<br />
9m=m^2
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Example: Solve x^2=4 for x.

x^2=4
x^2-4=0
(x+2)(x-2)=0
x+2=0      or     x-2=0
    x=-2     or        x=2


How to solve this? Thanks.

9m=m^2

Solving Quadratic Equations by Factoring

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