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OpenStudy (anonymous):
Use the quadratic formula to solve x^2 + 7x + 8 = 0. Estimate irrational solutions to the nearest tenth.
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OpenStudy (anonymous):
OpenStudy (anonymous):
OpenStudy (anonymous):
The solutions to the equation: \[ax^2 + bx + c = 0\] are given by: \[x = \frac{-b \pm \sqrt(b^2 - 4ac)}{2a}\]
OpenStudy (anonymous):
So it's 5.6 and 1.4. Thanks @DSS
OpenStudy (anonymous):
-5.6 & -1.4
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OpenStudy (anonymous):
oops... I forgot the negative.
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