SOLUTION: I cant seem to figure out how to factor or fit this into the quadratic equation *2xsquared-2* does the fact that there is NO "B" mean that the "B" is zero.

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: I cant seem to figure out how to factor or fit this into the quadratic equation *2xsquared-2* does the fact that there is NO "B" mean that the "B" is zero.      Log On


   

Question 2706: I cant seem to figure out how to factor or fit this into the quadratic equation *2xsquared-2* does the fact that there is NO "B" mean that the "B" is zero.
Found 2 solutions by longjonsilver, Alex:
Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
yes b is zero.

2x%5E2-2 is 2%28x%5E2-1%29 which is 2%28x%2B1%29%28x-1%29

jon

Answer by Alex(3) About Me  (Show Source):
You can put this solution on YOUR website!
Yes. As you know, the quadratic formula is made up of:
y+=+ax%5E2+%2B+bx+%2B+c
The equation you have given is:
2x%5E2+-+2
As you have noticed, the value of b is 0.
a = 2
b = 0
c = -2
If you plug this into the Quadratic Formula (x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+), you should get:
x+=+%28-0+%2B-+sqrt%28+0%5E2-4%2A2%2A-2+%29%29%2F%282%2A-2%29+