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OpenStudy (anonymous):
Which of the following is a solution of x2 + 5x = -2?
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OpenStudy (anonymous):
OpenStudy (anonymous):
the last one
OpenStudy (anonymous):
thanks!
OpenStudy (anonymous):
yw
OpenStudy (anonymous):
do you know how to find it ?
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OpenStudy (anonymous):
nope!
OpenStudy (anonymous):
ohhhhhhhhhhh thats not good
OpenStudy (anonymous):
look its very very simple
OpenStudy (anonymous):
in such problems (\[ax^2 + bx + c = 0\]) we use the following rule \[x=\frac{ b \pm \sqrt{b^2 - 4ac} }{ 2a }\]
OpenStudy (anonymous):
im sorry its |dw:1410278871294:dw|
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