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Mathematics 24 Online
OpenStudy (anonymous):

Solve 2x2 – 8x = –7

OpenStudy (anonymous):

2x^2 - 8x + 7 = 0. Now use quadratic formula.

OpenStudy (king):

x=(4 +or- sqrt2)/2

OpenStudy (mimi_x3):

\[\frac{-(-8)\pm\sqrt{(-8)^{2}-4(2)(7)}}{2(2)}= \frac{8\pm\sqrt{8}}{4} \]

OpenStudy (king):

mimi how do u put fraction in equation editor....

OpenStudy (mimi_x3):

\frac{}{}

OpenStudy (anonymous):

Latex fraction -> \frac{x}{y}\ = \(\Large \frac{x}{y}\)

OpenStudy (mimi_x3):

\frac{-(-8)\pm\sqrt{(-8)^{2}-4(2)(7)}}{2(2)}= \frac{8\pm\sqrt{8}}{4} (copy and paste that into the equation editor xD)

OpenStudy (anonymous):

but those arnt my answers to choose from :(

OpenStudy (mimi_x3):

What are your answers choices?

OpenStudy (anonymous):

\[\Large \begin{array}{l} \frac{{8 \pm \sqrt 8 }}{4}\\ = 2.71,1.29 \end{array}\]

OpenStudy (anonymous):

i figured it out its right... can u please help me on my other post i posted

OpenStudy (anonymous):

i need help on my other post i posted pleaseeeee

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