Calculate (4×7×3)²: Product of Three Numbers Squared

Exponent Rules with Product Distribution

(4×7×3)2= (4\times7\times3)^2=

❤️ 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

(4×7×3)2= (4\times7\times3)^2=

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:

(473)2=427232 (4\cdot7\cdot3)^2=4^2\cdot7^2\cdot3^2

Therefore, the correct answer is option a.

Note:

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

3

Final Answer

42×72×32 4^2\times7^2\times3^2

Key Points to Remember

Essential concepts to master this topic
  • Power Rule: When raising products to a power, distribute the exponent to each factor
  • Technique: (abc)n=anbncn (a \cdot b \cdot c)^n = a^n \cdot b^n \cdot c^n for any number of factors
  • Check: Calculate both (4×7×3)2=842=7056 (4 \times 7 \times 3)^2 = 84^2 = 7056 and 42×72×32=16×49×9=7056 4^2 \times 7^2 \times 3^2 = 16 \times 49 \times 9 = 7056

Common Mistakes

Avoid these frequent errors
  • Only squaring one or some factors instead of all
    Don't square just one factor like 42×7×3=84 4^2 \times 7 \times 3 = 84 instead of 7056! This ignores the power rule and gives a much smaller result. Always distribute the exponent to every single factor inside the parentheses.

Practice Quiz

Test your knowledge with interactive questions

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

FAQ

Everything you need to know about this question

Why can't I just square the first number and leave the others alone?

+

The exponent applies to the entire product inside parentheses! If you only square one factor, you're changing the mathematical meaning completely. Think of it like distributing: the 2 ^2 must reach every factor.

Does this rule work for more than 3 numbers?

+

Yes! The power rule works for any number of factors. Whether you have (ab)2 (a \cdot b)^2 or (abcde)3 (a \cdot b \cdot c \cdot d \cdot e)^3 , just distribute the exponent to every single factor.

Can I multiply the numbers first, then square the result?

+

Absolutely! You can either:

  • Multiply first: (4×7×3)2=842=7056 (4 \times 7 \times 3)^2 = 84^2 = 7056
  • Or distribute first: 42×72×32=16×49×9=7056 4^2 \times 7^2 \times 3^2 = 16 \times 49 \times 9 = 7056
Both methods give the same answer!

What if the exponent is different, like cubed or to the 4th power?

+

The same rule applies! (4×7×3)3=43×73×33 (4 \times 7 \times 3)^3 = 4^3 \times 7^3 \times 3^3 . Just distribute whatever exponent you have to every factor inside the parentheses.

How do I remember this rule?

+

Think of the exponent as a "copying machine" - it makes copies of itself for each factor. So 2 ^2 becomes three 2 ^2 's when there are three factors to distribute to!

🌟 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