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Mathematics 7 Online
OpenStudy (anonymous):

Please help me solve this!!! 2x^2 -8x=3

OpenStudy (anonymous):

heres the solution :)

OpenStudy (anonymous):

Personally, I prefer using the quadratic formula isf the equation doesn't factor. \[2x^{2}-8x-3=0\]a=2, b=-8, c=-3 \[x=(-b\pm\sqrt{b^{2}-4ac})/2a=(8\pm\sqrt{64+24})/4=(8\pm2\sqrt{22})/4=4\pm(\sqrt{22}/2)\] Which is the same answer, but, in my opinion, in a pretty form.

OpenStudy (anonymous):

thank you mtbender74!!!

OpenStudy (anonymous):

ya u can go by either way .. but the thing is quickness speed ... correct answer in less time with less calculations... so thats y i prefer the method by which i did the question :)

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