Question Number 62047 by hhghg last updated on 14/Jun/19
$$\left(\mathrm{4y}\right)^{\mathrm{2}} \\ $$
Commented by maxmathsup by imad last updated on 15/Jun/19
$$=\left(\mathrm{4}{y}\right)×\left(\mathrm{4}{y}\right)\:=\mathrm{16}{y}^{\mathrm{2}} \\ $$