Solve -m^{4}n^{2}+m^4n^2+13m^4n^2=

$$- m ^ { 4 } n ^ { 2 } + m ^ { 4 } n ^ { 2 } + 13 m ^ { 4 } n ^ { 2 } =$$

Evaluate

$$13n^{2}m^{4}$$

Solution Steps

Combine m^{4}n^{2} and 13m^{4}n^{2} to get 14m^{4}n^{2}.

$$\left(-m^{4}\right)n^{2}+14m^{4}n^{2}$$

Combine -m^{4}n^{2} and 14m^{4}n^{2} to get 13m^{4}n^{2}.

$$13m^{4}n^{2}$$

Differentiate w.r.t. m

$$52n^{2}m^{3}$$