Smashed Ixnay
New member
- Joined
- Feb 22, 2006
- Messages
- 4
Find the exact values of the solution set for f(x) = 0, f (x) < 0 and f(x) > 0 for:
f(x) = 2x^2 - 5x - 12
nswer for = 0 is { -3/2, 4 }
I get { 5/4, -63/4 }
I used vertex formula there, but using quadratic formula I get the 5/4, but different answer for second part.
f(x) = 2x^2 - 5x - 12
nswer for = 0 is { -3/2, 4 }
I get { 5/4, -63/4 }
I used vertex formula there, but using quadratic formula I get the 5/4, but different answer for second part.