Simplify \(-6-5-4-3-21fx\) to \(-21fx-18\).
\[-21fx-18={x}^{2}+6x+11\]
Factor out the common term \(3\).
\[-3(7fx+6)={x}^{2}+6x+11\]
Divide both sides by \(-3\).
\[7fx+6=-\frac{{x}^{2}+6x+11}{3}\]
Subtract \(6\) from both sides.
\[7fx=-\frac{{x}^{2}+6x+11}{3}-6\]
Divide both sides by \(7\).
\[fx=\frac{-\frac{{x}^{2}+6x+11}{3}-6}{7}\]
Simplify \(\frac{-\frac{{x}^{2}+6x+11}{3}-6}{7}\) to \(-\frac{\frac{{x}^{2}+6x+11}{3}}{7}-\frac{6}{7}\).
\[fx=-\frac{\frac{{x}^{2}+6x+11}{3}}{7}-\frac{6}{7}\]
Simplify \(\frac{\frac{{x}^{2}+6x+11}{3}}{7}\) to \(\frac{{x}^{2}+6x+11}{3\times 7}\).
\[fx=-\frac{{x}^{2}+6x+11}{3\times 7}-\frac{6}{7}\]
Simplify \(3\times 7\) to \(21\).
\[fx=-\frac{{x}^{2}+6x+11}{21}-\frac{6}{7}\]
Divide both sides by \(x\).
\[f=\frac{-\frac{{x}^{2}+6x+11}{21}-\frac{6}{7}}{x}\]
f=(-(x^2+6*x+11)/21-6/7)/x
