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Are z^3 and 3z eqivalent expressions? explain

User Jmvbxx
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1 Answer

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Given the expressions:


\begin{gathered} z^3 \\ 3z \end{gathered}

these two expressions are not equivalent, since one is thrice a number and the other is a cubic number. We can see this if we write completely each expression:


\begin{gathered} z^3=z\cdot z\cdot z \\ 3z=z+z+z \end{gathered}

thus, the expressions are not equivalent

User Jiwon
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