Question 598945
{{{3q + 100 = -q^2/2000 -4q + 1000}}}
0 = {{{-q^2/2000 - 4q - 3q + 1000 - 100}}}
0 = {{{-q^2/2000 - 7q + 900}}}
Multiply both sides by 2000
0 = {{{-q^2 - 14000q + 1800000}}}
f(q) = 0, therefore
f(q) = {{{-q^2 - 14000q + 1800000}}}