Multiply $\frac{\left(a^{4}b^{-2}\right)^{2}}{\left(c^{3}\right)^{2}}$ times $\frac{\left(a^{2}b^{3}\right)^{3}}{\left(c^{2}\right)^{3}}$ by multiplying numerator times numerator and denominator times denominator.
Multiply $\frac{\left(a^{4}b^{-2}\right)^{2}}{\left(c^{3}\right)^{2}}$ times $\frac{\left(a^{2}b^{3}\right)^{3}}{\left(c^{2}\right)^{3}}$ by multiplying numerator times numerator and denominator times denominator.