SOLUTION: Solve using the quadratic formula: 2x^2-11x-2=0

Question 411341: Solve using the quadratic formula:
2x^2-11x-2=0
Found 3 solutions by ewatrrr, rfer, shree840:
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!

Hi
Solving using the quadratic formula:
2x^2-11x-2=0

Answer by rfer(16322)   (Show Source): You can put this solution on YOUR website!
a=2, b=-11, c=-2
--------
(-b+-sqrtb^2-4ac)/2a
(11+-sqrt 121+16)/4
(11+-11.7)/4
-.7/4=-0.175
22.7/4=5.675
y int =-2
axis of symetry= 2.75
Answer by shree840(260)   (Show Source): You can put this solution on YOUR website!
a=2 b=-11 c=-2
roots -b +- sqroot(b^2-4ac)/2a -(-11) +- Sq root(121-4*2*(-2)/2*2
11 +-sq root(121+16)/4
(11 +- 11.61)/4
21.61/4 or -.61/4
5.42 0r -.15
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