Question 394021
{{{P(x) = -.4x^2 + f*x - m}}}
given:
{{{f = 40}}}
{{{m = 800}}}
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{{{P(x) = -.4x^2 + 40x - 800}}}
{{{P(x) = - 4x^2 + 400x - 8000}}}
{{{P(x) = -x^2 + 100x - 2000}}}
I think this is the final answer