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OpenStudy (anonymous):
Solve the equation using square roots. x2-9=0 A. –3, 3 B. –9, 9 C. -3,3 D. no real number solutions
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OpenStudy (anonymous):
Add 9 to both sides x^2=9 square root both sides which gives you \[x=\pm3\]
OpenStudy (anonymous):
it's C
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