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The expression represents the absolute value of .
Calculating the power, we get .
The absolute value of a positive number is the number itself, so .
Determine the absolute value of the following number:
\( \left|18\right|= \)
The order of operations says to do exponents before absolute value. The expression means "find the absolute value of 5 squared," not "square the absolute value of 5."
You'd still get the same answer! , then . When you square any real number, the result is always non-negative.
Not in this case! Since is already positive, the absolute value doesn't change it. The absolute value of any positive number is just the number itself.
Great question! means "find the absolute value of 5, then square it" = . While both give 25 here, they're different operations and would give different results with expressions like .
Absolute value matters when the expression inside could be negative! For example, , but . With even exponents like squares, both methods give the same result.
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