SOLUTION: Use the quadratic formula to solve the equation. -2x^2-5x+5=0

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Question 764676: Use the quadratic formula to solve the equation.
-2x^2-5x+5=0
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
-2x^2-5x+5
compare with ax%5E2+%2Bbx+%2Bc
a= -2 , b= -5 , c= 5

b^2-4ac= 25 + 40
b^2-4ac= 65
%09sqrt%28%0965%09%29=%098.06%09
x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29
x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29
x1=( 5 + 8.06 )/ -4
x1= -3.27
x2=%28-b-sqrt%28b%5E2-4ac%29%29%2F%282a%29
x2=( 5 -8.06 ) / -4
x2= 0.77

(-3.27,0.77)

m.ananth@hotmail.ca