Calculate the Absolute Value of 5 Squared

Absolute Value with Perfect Squares

∣52∣= \left|5^2\right| =

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Step-by-step written solution

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1

Understand the problem

∣52∣= \left|5^2\right| =

2

Step-by-step solution

The expression ∣52∣ \left|5^2\right| represents the absolute value of 52 5^2 .

Calculating the power, we get 52=25 5^2 = 25 .

The absolute value of a positive number is the number itself, so ∣25∣=25 \left|25\right| = 25 .

3

Final Answer

25 25

Key Points to Remember

Essential concepts to master this topic
  • Order of Operations: Calculate the exponent before applying absolute value
  • Technique: Evaluate 52=25 5^2 = 25 first, then find absolute value
  • Check: Since 25 is positive, ∣25∣=25 |25| = 25 ✓

Common Mistakes

Avoid these frequent errors
  • Applying absolute value to the base before squaring
    Don't calculate (∣5∣)2 (|5|)^2 instead of ∣52∣ |5^2| = different operations! This confuses the order of operations and can lead to wrong answers with negative bases. Always follow order of operations: exponents first, then absolute value.

Practice Quiz

Test your knowledge with interactive questions

Determine the absolute value of the following number:

\( \left|18\right|= \)

FAQ

Everything you need to know about this question

Why don't I apply the absolute value to 5 first?

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The order of operations says to do exponents before absolute value. The expression ∣52∣ |5^2| means "find the absolute value of 5 squared," not "square the absolute value of 5."

What if the base was negative, like ∣(−5)2∣ |(-5)^2| ?

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You'd still get the same answer! (−5)2=25 (-5)^2 = 25 , then ∣25∣=25 |25| = 25 . When you square any real number, the result is always non-negative.

Does the absolute value symbol change anything here?

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Not in this case! Since 52=25 5^2 = 25 is already positive, the absolute value doesn't change it. The absolute value of any positive number is just the number itself.

How is this different from (∣5∣)2 (|5|)^2 ?

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Great question! (∣5∣)2 (|5|)^2 means "find the absolute value of 5, then square it" = 52=25 5^2 = 25 . While both give 25 here, they're different operations and would give different results with expressions like ∣(−3)3∣ |(-3)^3| .

When does absolute value actually matter?

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Absolute value matters when the expression inside could be negative! For example, ∣(−4)3∣=∣−64∣=64 |(-4)^3| = |-64| = 64 , but (∣−4∣)3=43=64 (|-4|)^3 = 4^3 = 64 . With even exponents like squares, both methods give the same result.

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