Let f(x)=5x52x34\displaystyle {f{{\left({x}\right)}}}={5}{x}^{{{5}}}-{2}{x}^{{{3}}}-{4}. Find the equation of the line tangent to the graph of y=f(x)\displaystyle {y}={f{{\left({x}\right)}}} at the point (3,1157)\displaystyle {\left({3},{1157}\right)}.

The equation of the tangent line is y=\displaystyle {y}=