Compare Nested Exponents: (-(-3)³)² vs (2²)⁴

Nested Exponents with Negative Signs

Which is larger?

((3)3)2((2)2)4 (-(-3)^3)^2⬜((2)^2)^4

❤️ Continue Your Math Journey!

We have hundreds of course questions with personalized recommendations + Account 100% premium

Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Place the appropriate sign
00:03 First, let's calculate the sign
00:07 Even power means negative remains negative
00:12 Let's calculate the power
00:22 Negative times negative always equals positive
00:33 That's the first number, now let's calculate the second one
00:37 Let's calculate the powers
00:49 Break down 4 into factors of 2 and 2, and calculate one power of 2
00:54 Let's compare the numbers
00:58 And that's the solution to the problem

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Which is larger?

((3)3)2((2)2)4 (-(-3)^3)^2⬜((2)^2)^4

2

Step-by-step solution

To solve this problem, we need to follow these steps:

  • Step 1: Evaluate the first expression ((3)3)2 (-(-3)^3)^2
  • Step 2: Evaluate the second expression ((2)2)4((2)^2)^4
  • Step 3: Compare the results from Steps 1 and 2

Now, let's proceed with these steps:

Step 1: Evaluate the expression ((3)3)2 (-(-3)^3)^2 .
The inner expression is (3)3(-3)^3. Calculating this gives: (3)3=27 (-3)^3 = -27 Next, we compute the expression (3)3-(-3)^3, which simplifies to: (27)=27 -(-27) = 27 Finally, we square this result: (27)2=729 (27)^2 = 729 Thus, the value of the first expression is 729.

Step 2: Evaluate the expression ((2)2)4((2)^2)^4.
First, calculate (2)2(2)^2: (2)2=4 (2)^2 = 4 Next, raise this result to the fourth power: (4)4=256 (4)^4 = 256 Thus, the value of the second expression is 256.

Step 3: Compare the two results from above:
We have ((3)3)2=729 (-(-3)^3)^2 = 729 and ((2)2)4=256((2)^2)^4 = 256 .

Since 729 is greater than 256, the expression ((3)3)2 (-(-3)^3)^2 is larger.

Thus, the correct answer is >\mathbf{>}.

3

Final Answer

> >

Key Points to Remember

Essential concepts to master this topic
  • Order: Evaluate innermost parentheses first, then work outward
  • Technique: (3)3=27 (-3)^3 = -27 , then (27)=27 -(-27) = 27
  • Check: Substitute final values: 729 > 256, so first expression wins ✓

Common Mistakes

Avoid these frequent errors
  • Ignoring negative signs in nested expressions
    Don't calculate ((3)3)2 (-(-3)^3)^2 as (33)2=729 (3^3)^2 = 729 without tracking negatives! Missing the double negative (27) -(-27) can flip your final sign. Always work step-by-step from innermost parentheses outward, carefully tracking each negative sign.

Practice Quiz

Test your knowledge with interactive questions

\( (-2)^7= \)

FAQ

Everything you need to know about this question

Why does (3)3 (-3)^3 equal -27 instead of +27?

+

When you raise a negative number to an odd power, the result stays negative! (3)3=(3)×(3)×(3)=27 (-3)^3 = (-3) \times (-3) \times (-3) = -27 . Remember: odd powers keep the sign, even powers make it positive.

What does the double negative (27) -(-27) mean?

+

A negative times a negative equals positive! So (27)=+27 -(-27) = +27 . Think of it as "the opposite of negative 27" which is positive 27.

Can I use the power rule (am)n=amn (a^m)^n = a^{mn} here?

+

Be careful! You can use it for ((2)2)4=22×4=28=256 ((2)^2)^4 = 2^{2 \times 4} = 2^8 = 256 . But for ((3)3)2 (-(-3)^3)^2 , you must evaluate the inner expression first because of the negative signs.

How do I keep track of all these parentheses?

+

Work from the inside out, one layer at a time. Write each step clearly:

  • Step 1: (3)3=27 (-3)^3 = -27
  • Step 2: (27)=27 -(-27) = 27
  • Step 3: (27)2=729 (27)^2 = 729

Why is 729 greater than 256 when both expressions look complicated?

+

The first expression simplifies to 272=729 27^2 = 729 , while the second becomes 44=256 4^4 = 256 . Even though 4 is bigger than 27, raising 27 to the 2nd power gives a larger result than raising 4 to the 4th power!

🌟 Unlock Your Math Potential

Get unlimited access to all 18 Powers - special cases questions, detailed video solutions, and personalized progress tracking.

📹

Unlimited Video Solutions

Step-by-step explanations for every problem

📊

Progress Analytics

Track your mastery across all topics

🚫

Ad-Free Learning

Focus on math without distractions

No credit card required • Cancel anytime

More Questions

Click on any question to see the complete solution with step-by-step explanations