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OpenStudy (anonymous):
x2 - 10x - 5 = 0? I don't understand how to do it!
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OpenStudy (mimi_x3):
Use the quadratic formula
OpenStudy (lalaly):
\[-b \pm \sqrt{\frac{b ^{2}-4ac}{2a}}\]
OpenStudy (lalaly):
b=-10 a=1 c=-5
OpenStudy (anonymous):
m with lalaly....nd mimi...........:)
OpenStudy (anonymous):
okay, thank you !
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