SOLUTION: Find a quadratic equation with roots 5 and -1/2. A. 2x^2+9x-5=0 B. 2x^2-9x+5=0 C. 2x^2+9x+5=0 (I know that this isn't the true answer.) D. 2x^2-9x-5=0 I need help, I have lo

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: Find a quadratic equation with roots 5 and -1/2. A. 2x^2+9x-5=0 B. 2x^2-9x+5=0 C. 2x^2+9x+5=0 (I know that this isn't the true answer.) D. 2x^2-9x-5=0 I need help, I have lo      Log On


   

Question 66788: Find a quadratic equation with roots 5 and -1/2.
A. 2x^2+9x-5=0
B. 2x^2-9x+5=0
C. 2x^2+9x+5=0 (I know that this isn't the true answer.)
D. 2x^2-9x-5=0
I need help, I have looked @ many references, and found nothing.
Found 2 solutions by stanbon, checkley71:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find a quadratic equation with roots 5 and -1/2.
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If 5 is a root, (x-5) is a factor
If -1/2 is a root, (2x+1) is a factor
EQUATIOn:
y=(x-5)(2x+1)
y=2x^2-9x-5
Ans: D
Cheers,
Stan H.

Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
CORREST ANSWER IS D). CHECK THIS ANSWER !!!!!!!!!!!!!!!!!!!!!!!