Question

hi please help me:http://prntscr.com/2t4ufb

Answer 1

\(\bf (\pi l)^3=\cfrac{4}{3}\pi r^3\implies (\pi l)^3=\cfrac{4\pi r^3}{3}\\ \quad \\
\textit{multiply both sides by }3\\
\textit{divide both sides by }4\pi\\
\textit{take }\sqrt[3]{\qquad }\textit{ to both sides}\)

Answer 2

could you help me with the breakdown on the process please. i'm kind of stuck in multiplying 3 by (πl)^3

Answer 3

if you multiply both sides by 3.... what do you get on the right-hand side?