How do you evaluate #18- 4^ { 2} + 7#?

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Answer 1 · 2018-03-08T20:12:54

See a solution process below:

Using the PEDMAS order of operation, first, execute the Exponent operation:

#18 - 4^color(red)(2) + 7 =>#

#18 - 16 + 7#

Now, execute the Addition and Subtraction operations from left to right:

#color(red)(18) - color(red)(16) + 7 =>#

#2 + 7 =>#

#9#