SOLUTION: Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -2x2 + 8x + 5.

Algebra ->  Rational-functions -> SOLUTION: Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -2x2 + 8x + 5.      Log On


   

Question 891720: Select the approximate values of x that are solutions to f(x) = 0, where
f(x) = -2x2 + 8x + 5.
Answer by LinnW(1048) About Me  (Show Source):
You can put this solution on YOUR website!
-2x%5E2+%2B+8x+%2B+5+=+0
Using quadratic solver
x = 2%2Bsqrt%2813%2F2%29 or 2%2Bsqrt%2813%2F2%29
Try www.wolframalpha.com
and enter -2x^2 + 8x + 5 = 0