Answer
$f(x)=x^3+4x^2-5x$
Work Step by Step
$f(x)=a[x-(-5)](x-0)(x-1)=a(x+5)x(x-1)=a(x^3+4x^2-5x)$
$a$ can be any value. If $a=1$:
$f(x)=x^3+4x^2-5x$
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