$$\frac { a - b } { a ^ { 2 } + a b } \times \frac { a ^ { 4 } - b ^ { 4 } } { a ^ { 2 } - 2 a b + b ^ { 2 } } \times \frac { a } { a ^ { 2 } + b ^ { 2 } }$$
Evaluate
$1$
Short Solution Steps
Factor the expressions that are not already factored in $\frac{a^{4}-b^{4}}{a^{2}-2ab+b^{2}}$.
Multiply $\frac{a-b}{a^{2}+ab}$ times $\frac{\left(a+b\right)\left(a^{2}+b^{2}\right)}{a-b}$ by multiplying numerator times numerator and denominator times denominator.
Multiply $\frac{\left(a+b\right)\left(a^{2}+b^{2}\right)}{a^{2}+ab}$ times $\frac{a}{a^{2}+b^{2}}$ by multiplying numerator times numerator and denominator times denominator.
