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Question
i was given a question that i have no clue how to do it was
find the sum of the roots
4x^2 - 3x - 8 = 0
how do you do this?!
4x^2 - 3x - 8 = 0
x = (-b ± sqrt(b^2 - 4ac))/(2a)
x = (-(-3) ± sqrt((-3)^2 - 4(4)(-8)))/(2(4))
x = (3 ± sqrt(9 + 128))/8
x = (3 ± sqrt(137))/8
Sum of the Roots
((3 + sqrt(137)/8) + ((3 - sqrt(137))/8)
(3 + sqrt(137) + 3 - sqrt(137))/8
6/8
(3/4)
ANS : (3/4)
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Sherman D.
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I can answer questions dealing in mathematics of all kinds except for Physics and Calculus, but i can answer questions in Pre-Calculus and Chemistry. I can also answer questions in Recipes of all kinds. I can find games cheats/walkthroughs, but i can`t find a specific game online or offline. I can also do history and recipes for alcoholic beverages.
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