SOLUTION: We have been asked to do the following problem, for some reason it's just not sinking in. Any help that you could provide would be greatly appreciated. One solution of 3x^2-7x+

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: We have been asked to do the following problem, for some reason it's just not sinking in. Any help that you could provide would be greatly appreciated. One solution of 3x^2-7x+      Log On


   

Question 29793: We have been asked to do the following problem, for some reason it's just not sinking in. Any help that you could provide would be greatly appreciated.
One solution of 3x^2-7x+c=0 is 1/3. Find C and the other solution.
Thanks!
Lisa
Answer by venugopalramana(3286) About Me  (Show Source):
You can put this solution on YOUR website!
One solution of 3x^2-7x+c=0 is 1/3.
LET THE OTHER ROOT BE A...IN A QUADRATIC EQN.AX^2+BX+C=0..SUM OF ROOTS =-B/A AND PRODUCT OF ROOTS = C/A...HENCE.....
SUM OF ROOTS =A+1/3=-(-7)/3=7/3....SO A=7/3-1/3=6/3=2
PRODUCT OF ROOTS =A*1/3=2*1/3=2/3=C/3....SO C=2