Question

$if \: r \: = 10 \: simplify \: and \: find \: the \: value \: of \: {r}^{3 \: } - \: 5(r - 5)$


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Answer 1

Given:-

• $if \: r \: = 10 \: simplify \: and \: find \: the \: value \: of \: {r}^{3 \: } - \: 5(r - 5)$

Solution:-

• $= > {r}^{3} - 5 \times (r - 5) \\ \\ \\ = > {10}^{3} - 5 \times (10 - 5) \\ \\ \\ = > 1000 - 5 \times (10 - 5) \\ \\ \\ = > 9995 \times (10 - 5) \\ \\ \\ = > 9995 \times 5 \\ \\ \\ = > 49975$
• hey mate! your answer is 49975.

Hope it helped!