Reduce the Expression: 2⁷ × 3⁷ × 10⁷ Power Product

Power of Products with Exponent Laws

Choose the expression that corresponds to the following:

27×37×107= 2^7\times3^7\times10^7=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Simplify the following problem
00:03 When we are presented with a multiplication operation where all the factors have the same exponent (N)
00:07 We can write the exponent (N) over the entire multiplication
00:13 We can apply this formula to our exercise
00:21 Now we solve each multiplication separately
00:29 This is the solution

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Choose the expression that corresponds to the following:

27×37×107= 2^7\times3^7\times10^7=

2

Step-by-step solution

To simplify the expression 27×37×107 2^7 \times 3^7 \times 10^7 , we can follow these steps:

  • Step 1: Apply the power of a product rule to combine 27×37 2^7 \times 3^7 into (2×3)7 (2 \times 3)^7 .

  • Step 2: Recognize that 2×3=6 2 \times 3 = 6 , so the expression becomes 67×107 6^7 \times 10^7 .

  • Step 3: Again, apply the power of a product rule to combine 67×107 6^7 \times 10^7 into (6×10)7 (6 \times 10)^7 .

  • Step 4: Calculate 6×10=60 6 \times 10 = 60 , resulting in 607 60^7 .

Therefore, the simplified form of the expression is 607 60^7 . Additionally, since all the provided answer choices (607 60^7 , 67×107 6^7 \times 10^7 , and 27×(3×10)7 2^7 \times (3 \times 10)^7 ) represent equivalent forms of the original expression, all answers are correct.

3

Final Answer

All answers are correct.

Key Points to Remember

Essential concepts to master this topic
  • Power of a Product Rule: an×bn=(a×b)n a^n \times b^n = (a \times b)^n
  • Technique: 27×37=(2×3)7=67 2^7 \times 3^7 = (2 \times 3)^7 = 6^7
  • Check: All equivalent forms should represent the same base and exponent ✓

Common Mistakes

Avoid these frequent errors
  • Adding exponents when bases are different
    Don't think 27×37=514 2^7 \times 3^7 = 5^{14} ! Adding bases and multiplying exponents is wrong because the power of a product rule only works when exponents are the same. Always combine bases first: 27×37=(2×3)7=67 2^7 \times 3^7 = (2 \times 3)^7 = 6^7 .

Practice Quiz

Test your knowledge with interactive questions

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

FAQ

Everything you need to know about this question

Why can I combine 27×37 2^7 \times 3^7 but not 27×35 2^7 \times 3^5 ?

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The power of a product rule only works when exponents are identical! an×bn=(a×b)n a^n \times b^n = (a \times b)^n , so 27×37=(2×3)7 2^7 \times 3^7 = (2 \times 3)^7 . Different exponents can't be combined this way.

How do I know which form is "most simplified"?

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All three forms are equally correct! 607 60^7 , 67×107 6^7 \times 10^7 , and 27×(3×10)7 2^7 \times (3 \times 10)^7 represent the same value. Choose the form that works best for your specific problem.

Can I apply this rule in reverse?

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Yes! You can break apart powers: 607=(6×10)7=67×107 60^7 = (6 \times 10)^7 = 6^7 \times 10^7 . This reverse application is useful for simplifying calculations or factoring.

What if I have more than two terms with the same exponent?

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The rule extends to any number of terms! an×bn×cn=(a×b×c)n a^n \times b^n \times c^n = (a \times b \times c)^n . So 27×37×107=(2×3×10)7=607 2^7 \times 3^7 \times 10^7 = (2 \times 3 \times 10)^7 = 60^7 .

Why is the answer "All answers are correct"?

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Each option represents a different equivalent form of the same expression. Mathematics allows multiple correct representations - they're all equal to 27×37×107 2^7 \times 3^7 \times 10^7 !

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