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OpenStudy (lakers):
Find the solution to x2 = 121. A. ±121 B. -11 C. ±11 D. 11
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OpenStudy (anonymous):
sqrt 121 and you get what?
OpenStudy (anonymous):
or try plugging in -11 and 11 into the equation
OpenStudy (lakers):
11 so +-11 or just 11?
OpenStudy (anonymous):
did you try putting in -11?
OpenStudy (lakers):
i dont get it?
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OpenStudy (anonymous):
anytime you square a number it becomes positive because a positive*positive= positive and a negative* a negative= a positive
OpenStudy (lakers):
ok thank you
OpenStudy (anonymous):
(-11)(-11)=?
OpenStudy (anonymous):
got it?
OpenStudy (lakers):
yup
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