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OpenStudy (anonymous):
Use the quadratic formula to solve -2x2 - 4x = 0.
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OpenStudy (saifoo.khan):
0 or -2
OpenStudy (anonymous):
yaa buddy
OpenStudy (saifoo.khan):
^.^
OpenStudy (anonymous):
\[-2x(x+2)=0\] \[x=0\] \[x=-2\]
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