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#3**0 **

Two ways of doing it;

(pi*7)^2 = 483.6106156533785723

pi*(7^2) = 153.9380400258998687

Please specify parentheses.

PkmnQ Jul 26, 2017

#4**+2 **

I agree, here, that the language is ambiguous, but you can specify, in words, which interpretation you want.

Expression | Words |

\(\pi*7^2\) | What is the product of pi and seven squared? |

\((\pi*7)^2\) | What is the quantity of pi multiplied by seven all raised to the second power? |

Generally, if you want to indicate parentheses, you will use the term "quantity of..."

TheXSquaredFactor
Jul 26, 2017