Question

Find the products:

$\left(\frac{-3}{4}a{b}^3\right)\times \left(\frac{-2}{3}{a}^2{b}^4\right)$

Answer 1

$$\begin{gathered} =(\frac{-3}{4}\times \frac{-2}{3})\times (\mathrm{a}\times {\mathrm{a}}^2\times {\mathrm{b}}^3\times {\mathrm{b}}^4) \\ =\frac{1}{2}\times {\mathrm{a}}^{(1+2)}\times {\mathrm{b}}^{(3+4)} \\ =\frac{1}{2}{\mathrm{a}}^3{\mathrm{b}}^7 \end{gathered}$$