SOLUTION: choose the letter that describes the correct answer from this question. Please show your solution. What will be the sum of the two roots of a quadratic equation? a. b/a b. -

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: choose the letter that describes the correct answer from this question. Please show your solution. What will be the sum of the two roots of a quadratic equation? a. b/a b. -      Log On


   

Question 96807: choose the letter that describes the correct answer from this question. Please show your solution.
What will be the sum of the two roots of a quadratic equation?
a. b/a
b. -b/a
c. -a/b
d. -b^2/4ac
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+

one root is the + in the numerator and the other root is the -

when the two roots are added, the + and - terms cancel leaving -2b/2a or -b/a