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OpenStudy (anonymous):
Use the quadratic formula to solve 3x2 – 12 = 0.
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OpenStudy (saifoo.khan):
2 or -2
OpenStudy (anonymous):
\[3(x^2-4)=0\] \[3(x-2)(x+2)=0\] \[x-2=0\] \[x=2\] \[x+2=0\] \[x=-2\] there!
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