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Let f(x)=px^(2)+qx+r, where p, q, r are ...

Let `f(x)=px^(2)+qx+r`, where p, q, r are constants and `p ne 0`. If `f(5)= -3f(2) and f(-4)=0`, then the other root of f is

A

3

B

`-7`

C

`-2`

D

2

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The correct Answer is:
A
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