Exercise26

Evaluate the following expressions.

  1. Evaluate \({r^{2}x^{3}}\) when \(r=-3\) and \(x=-1\text{.}\) \(\displaystyle{{r^{2}x^{3}}=}\)

  2. Evaluate \({r^{3}x^{2}}\) when \(r=-3\) and \(x=-1\text{.}\) \(\displaystyle{{r^{3}x^{2}}=}\)

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