Calculate (3×4×5)⁴: Fourth Power of a Triple Product

Exponent Rules with Multiple Product Terms

(3×4×5)4= (3\times4\times5)^4=

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1

Understand the problem

(3×4×5)4= (3\times4\times5)^4=

2

Step-by-step solution

We use the power law for multiplication within parentheses:

(xy)n=xnyn (x\cdot y)^n=x^n\cdot y^n

We apply it to the problem:

(345)4=344454 (3\cdot4\cdot5)^4=3^4\cdot4^4\cdot5^4

Therefore, the correct answer is option b.

Note:

From the formula of the power property mentioned above, we understand that it refers not only to two terms of the multiplication within parentheses, but also for multiple terms within parentheses.

3

Final Answer

34×44×54 3^4\times4^4\times5^4

Key Points to Remember

Essential concepts to master this topic
  • Power Rule: Distribute exponents to each factor inside parentheses
  • Technique: (3×4×5)4=34×44×54 (3\times4\times5)^4 = 3^4\times4^4\times5^4
  • Check: Verify by calculating both ways: 60⁴ = 12,960,000 ✓

Common Mistakes

Avoid these frequent errors
  • Only applying exponent to first term
    Don't just write 3⁴×4×5 = 324×4×5 = 6,480! This ignores the power rule completely and gives a drastically wrong answer. Always distribute the exponent to every single factor inside the parentheses.

Practice Quiz

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

FAQ

Everything you need to know about this question

Why can't I just multiply 3×4×5 first to get 345⁴?

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Be careful with notation! Writing 345 means three hundred forty-five, not 3×4×5. The multiplication symbols matter! You can calculate (3×4×5)⁴ = 60⁴, but 345⁴ is completely different.

Does this rule work with more than three numbers?

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Absolutely! The power rule (a×b×c×d)n=an×bn×cn×dn (a\times b\times c\times d)^n = a^n\times b^n\times c^n\times d^n works with any number of factors inside the parentheses.

Can I calculate 3⁴×4⁴×5⁴ step by step?

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Yes! Calculate each power separately: 34=81 3^4 = 81 , 44=256 4^4 = 256 , 54=625 5^4 = 625 , then multiply: 81×256×625 = 12,960,000.

What if the exponent was outside just one number?

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If you see 3×4×54 3\times4\times5^4 (no parentheses), only the 5 gets the exponent: 3×4×625=7,500 3\times4\times625 = 7,500 . Parentheses make all the difference!

Is there a shortcut for this type of problem?

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You can multiply inside first: (3×4×5)4=604 (3\times4\times5)^4 = 60^4 , but for multiple choice questions, recognizing the power rule pattern is often faster than calculating the final number.

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