Question

$\mathrm{Write}\mathrm{down}7x{y}^2\times 3x^{2}y\times 5y^4\mathrm{in}\mathrm{the}\mathrm{exponential}\mathrm{form}.$

Answer 1

$$\begin{gathered} 7x{y}^2\times 3x^{2}y\times 5y^4 \\ =\left(7\times 3\times 5\right)\times \left(x\times x^2\right)\times \left(y^2\times y\times y^4\right) \\ =105x^3{y}^7 \end{gathered}$$