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OpenStudy (anonymous):
What are the factors of x2 − 81? (x + 9)(x − 9) (x − 9)(x − 9) (x + 3)(x − 27) Prime
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OpenStudy (mayaal):
THE ANSWER IS CHOICE A.
OpenStudy (anonymous):
(X+9)(x-9)
OpenStudy (mayaal):
THIS IS BECAUSE U HAVE TO USE THE DIFFERENCE BW 2 SQUARES PROPERTY: (A-B)(A+B)=A SQUARED-B SQUARED
OpenStudy (anonymous):
Thank you :)
OpenStudy (mayaal):
You Are Welcome....!
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