SOLUTION: what is the quadratic equation whose roos are -3 and 5

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Question 207427: what is the quadratic equation whose roos are -3 and 5
Found 2 solutions by Alan3354, vleith:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
what is the quadratic equation whose roos are -3 and 5
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It's (x-a)*(x-b)
(x+3)*(x-5) = 0
x%5E2+-+2x+-+15+=+0

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
You are told the roots are -3 and 5
So you know that in order to be a root, that means the function equates to 0 at that value.
x = -3
x+3=0
x=5
x-5=0
Now mutliply those two terms to get the original equation. as follows:
%28x%2B3%29%28x-5%29
x%5E2+-2x+-+15