Solve ((x^(1/4) × 3² × 6³)^(1/4))^8: Complex Exponent Simplification

Power Rules with Nested Exponents

Solve the following problem:

((x14×32×63)14)8= ((x^{\frac{1}{4}}\times3^2\times6^3)^{\frac{1}{4}})^8=

❤️ 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

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Solve the following problem:

((x14×32×63)14)8= ((x^{\frac{1}{4}}\times3^2\times6^3)^{\frac{1}{4}})^8=

2

Step-by-step solution

Proceed to solve this in two stages. In the first stage, we'll use the power rule for powers in parentheses:

(zt)n=zntn (z\cdot t)^n=z^n\cdot t^n

which states that when a power is applied to terms in parentheses, it applies to each term inside the parentheses when they are opened,

Let's apply this rule to our problem:

((x143263)14)8=((x14)14(32)14(63)14)8 \big((x^{\frac{1}{4}}\cdot3^2\cdot6^3)^{\frac{1}{4}}\big)^8=((x^{\frac{1}{4}})^{\frac{1}{4}}\cdot(3^2)^{\frac{1}{4}}\cdot(6^3)^{\frac{1}{4}})^8

When opening the parentheses, we applied the power to each term separately, however given that each of these terms is raised to a power, we did this carefully and used parentheses,

Next, we'll use the power rule for a power raised to a power:

(bm)n=bmn (b^m)^n=b^{m\cdot n}

Let's apply this rule to the expression that we obtained:

(x141432146314)8=(x116324634)8=x116832486348=x81631646244 (x^{\frac{1}{4}\cdot\frac{1}{4}}\cdot3^{2\cdot\frac{1}{4}}\cdot6^{3\cdot\frac{1}{4}})^8=(x^{\frac{1}{16}}\cdot3^{\frac{2}{4}}\cdot6^{\frac{3}{4}})^8=x^{\frac{1}{16}\cdot8}\cdot3^{\frac{2}{4}\cdot8}\cdot6^{\frac{3}{4}\cdot8}=x^{\frac{8}{16}}\cdot3^{\frac{16}{4}}\cdot6^{\frac{24}{4}}

In the second stage we performed multiplication in the fractions of the power expressions of the terms that we obtained. Remember that multiplication in fractions is actually multiplication in the numerator. In the final stage we simplified the fractions in the power expressions of the multiplication terms that we obtained:

x81631646244=x123466 x^{\frac{8}{16}}\cdot3^{\frac{16}{4}}\cdot6^{\frac{24}{4}}=x^{\frac{1}{2}}\cdot3^4\cdot6^6

Therefore, the correct answer is answer B.

3

Final Answer

x12×34×66 x^{\frac{1}{2}}\times3^4\times6^6

Key Points to Remember

Essential concepts to master this topic
  • Power Rule: Apply (am)n=amn (a^m)^n = a^{mn} to each term separately
  • Technique: Work inside-out: x1414=x116 x^{\frac{1}{4} \cdot \frac{1}{4}} = x^{\frac{1}{16}} , then multiply by 8
  • Check: Count exponent operations: two ¼ powers then ×8 gives ½ ✓

Common Mistakes

Avoid these frequent errors
  • Adding exponents instead of multiplying
    Don't add exponents like x14+14+8=x812 x^{\frac{1}{4} + \frac{1}{4} + 8} = x^{8\frac{1}{2}} ! Powers of powers require multiplication, not addition. Always multiply exponents: x14148=x12 x^{\frac{1}{4} \cdot \frac{1}{4} \cdot 8} = x^{\frac{1}{2}} .

Practice Quiz

Test your knowledge with interactive questions

Simplify the following equation:

\( \)\( 4^5\times4^5= \)

FAQ

Everything you need to know about this question

Why do I multiply the exponents instead of adding them?

+

When you have powers of powers like (xa)b (x^a)^b , you're multiplying the base by itself a times, then doing that whole thing b times. This means a×b a \times b total multiplications, so the rule is (xa)b=xab (x^a)^b = x^{ab} .

How do I handle the fraction exponents like ¼?

+

Treat fractional exponents just like whole numbers when multiplying: 14×14=116 \frac{1}{4} \times \frac{1}{4} = \frac{1}{16} . Then 116×8=816=12 \frac{1}{16} \times 8 = \frac{8}{16} = \frac{1}{2} .

Do I apply the outer exponent to each term separately?

+

Yes! When you have (abc)n (abc)^n , it becomes anbncn a^n \cdot b^n \cdot c^n . So our expression becomes (x116312634)8 (x^{\frac{1}{16}} \cdot 3^{\frac{1}{2}} \cdot 6^{\frac{3}{4}})^8 , then each gets the 8th power.

What's the difference between this and multiplying terms with same base?

+

Here we have different bases (x, 3, 6) raised to powers, so we keep them separate. If we had x2x3 x^2 \cdot x^3 , then we'd add exponents to get x5 x^5 .

How can I check if my final answer is right?

+

Verify the exponents make sense: we started with x14 x^{\frac{1}{4}} , applied two more operations (×¼ then ×8), giving x14148=x12 x^{\frac{1}{4} \cdot \frac{1}{4} \cdot 8} = x^{\frac{1}{2}} . The pattern should be consistent for all terms.

🌟 Unlock Your Math Potential

Get unlimited access to all 18 Exponents Rules 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