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ashleysmith 3 years ago solve by completing the square. x(to 2nd power) -6x-16=0

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1. SmoothMath

The first thing to do is make it look like something you can complete the square for. Get the x^2 and the x part of the equation alone.

2. cwtan

Completing the square (x-3)^2-3^2-16=0

3. cwtan

(x-3)^2=25 x-3=$$\pm$$5

4. ashleysmith

thank you!!!

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