Describe how to evaluate the expression 3^2 + (21 – 9) X 6÷2.

Question

Describe how to evaluate the expression 3^2 + (21 – 9) X 6÷2.

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Delwyn 5 years 2021-07-29T17:44:57+00:00 1 Answers 23 views 0

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  1. Bo
    0
    2021-07-29T17:46:45+00:00
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    Answer:

    The expression will be evaluated as:

    3^2+\left(21-9\right)\times \:6\div \:2=45

    Step-by-step explanation:

    Given the expression

    3^2\:+\:\left(21\:-\:9\right)\:\times \:6\div 2

    Follow the PEMDAS order of operations

    Calculate within parentheses

    =3^2+12\times \:6\div \:2

    Calculate exponents i.e. 3²=9

    =9+12\times \:6\div \:2

    Multiply and divide (left to right) i.e. 12×6÷2=36

    =9+36

    Add and subtract (left to right) i.e. 9+36 = 45

    =45

    Thus, the expression will be evaluated as:

    3^2+\left(21-9\right)\times \:6\div \:2=45

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