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OpenStudy (anonymous):
i want to know if my answer is correct. Complete the square to solve for x. x^2−16=0
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OpenStudy (anonymous):
x=-4 x=4
OpenStudy (nikato):
its correct
OpenStudy (mathstudent55):
@AlondraGalvan Can you show what you've done?
OpenStudy (anonymous):
i foiled my factors and they ended up being the same as the question
OpenStudy (nikato):
did you foil correctly?
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OpenStudy (anonymous):
yes
OpenStudy (mathstudent55):
How is that completing the square?
OpenStudy (anonymous):
difference of squares identity|dw:1383538531754:dw|
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