Simplify the Nested Expression: ((b³)⁶)² Using Exponent Rules

Power Rule with Multiple Nested Exponents

((b3)6)2= ((b^3)^6)^2=

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1

Understand the problem

((b3)6)2= ((b^3)^6)^2=

2

Step-by-step solution

We use the formula

(am)n=am×n (a^m)^n=a^{m\times n}

Therefore, we obtain:

((b3)6)2=(b3×6)2=(b18)2=b18×2=b36 ((b^3)^6)^2=(b^{3\times6})^2=(b^{18})^2=b^{18\times2}=b^{36}

3

Final Answer

b36 b^{36}

Key Points to Remember

Essential concepts to master this topic
  • Power Rule: When raising a power to a power, multiply the exponents
  • Technique: Work from inside out: (b3)6=b18 (b^3)^6 = b^{18} , then (b18)2=b36 (b^{18})^2 = b^{36}
  • Check: Count total multiplications: 3 × 6 × 2 = 36 exponents ✓

Common Mistakes

Avoid these frequent errors
  • Adding exponents instead of multiplying
    Don't add the exponents like 3 + 6 + 2 = 11 to get b11 b^{11} ! This treats nested powers like addition problems and gives completely wrong results. Always multiply exponents when you see powers raised to powers: 3 × 6 × 2 = 36.

Practice Quiz

Test your knowledge with interactive questions

\( 112^0=\text{?} \)

FAQ

Everything you need to know about this question

Why do I multiply the exponents instead of adding them?

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Because raising a power to a power means repeated multiplication! When you have (b3)6 (b^3)^6 , you're multiplying b3 b^3 by itself 6 times, which gives you b3+3+3+3+3+3=b18 b^{3+3+3+3+3+3} = b^{18} .

Should I work from inside out or outside in?

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Always work from inside out! Start with the innermost parentheses first. So ((b3)6)2 ((b^3)^6)^2 becomes (b18)2 (b^{18})^2 , then finally b36 b^{36} .

Can I just multiply all the exponents at once?

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Yes! Once you understand the pattern, you can multiply all exponents directly: 3×6×2=36 3 \times 6 \times 2 = 36 . This gives you b36 b^{36} in one step!

What if there are different bases inside the parentheses?

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The power rule still applies to each base separately. For example, (x2y3)4=x8y12 (x^2y^3)^4 = x^8y^{12} . Just multiply each exponent by the outside power.

How can I check my answer without working backwards?

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Count the total number of times the base gets multiplied! In ((b3)6)2 ((b^3)^6)^2 , you have 3 × 6 × 2 = 36 total multiplications of b, so the answer must be b36 b^{36} .

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