Question

$$a ^ { 2 } - b ^ { 2 } a ^ { 2 } - a b [$$

Answer

$$a^2-b^2*a^3*n*d-a*b[$$

Solution


Regroup terms.
Use Product Rule: \({x}^{a}{x}^{b}={x}^{a+b}\).
Simplify  \(1+2\)  to  \(3\).