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Mathematics 16 Online
OpenStudy (anonymous):

2x² +9x=-7

OpenStudy (anonymous):

use the quadratic formula! \[-b \pm \sqrt{b ^{2}-4ac}/2a\]

OpenStudy (anonymous):

here a=2; b=9 and c=7 plug in & solve!

OpenStudy (anonymous):

i got 4 am i right?

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