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OpenStudy (anonymous):
Solve x^2 + 4x + 8 = 0
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OpenStudy (anonymous):
Here you can factor x^2 + 4x nicely into two binomial products.
OpenStudy (anonymous):
The result will be x^2 + 4x + 4
OpenStudy (anonymous):
use quadratic equation. \[-b \pm \sqrt{b ^{2}-4ac}/2a\]
OpenStudy (anonymous):
here a=1; b=4; c=8 plug in and solve..
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