Solve (7×4×6×3)⁴: Product of Numbers Raised to Fourth Power

Exponent Rules with Product Multiplication

(7463)4=? (7\cdot4\cdot6\cdot3)^4= \text{?}

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Simply
00:03 We'll use the power formula for multiplications
00:06 When we have each multiplication raised to any power (N)
00:09 We can also write this as each factor raised to the exponent (N)
00:13 We'll use this formula in our exercise
00:16 Let's expand the parentheses and raise each factor to its appropriate power
00:19 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

(7463)4=? (7\cdot4\cdot6\cdot3)^4= \text{?}

2

Step-by-step solution

We use the power property for an exponent that is applied to a set parentheses in which the terms are multiplied:

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

We apply the law in the problem:

(7463)4=74446434 (7\cdot4\cdot6\cdot3)^4=7^4\cdot4^4\cdot6^4\cdot3^4

When we apply the exponent to a parentheses with multiplication, we apply the exponent to each term of the multiplication separately, and we keep the multiplication between them.

Therefore, the correct answer is option a.

3

Final Answer

74446434 7^4\cdot4^4\cdot6^4\cdot3^4

Key Points to Remember

Essential concepts to master this topic
  • Power Rule: When raising a product to a power, distribute the exponent to each factor
  • Distribution: (7463)4=74446434 (7\cdot4\cdot6\cdot3)^4 = 7^4\cdot4^4\cdot6^4\cdot3^4
  • Check: Each original factor should have the same exponent as the parentheses ✓

Common Mistakes

Avoid these frequent errors
  • Applying the exponent to only one factor or the product sum
    Don't calculate (7×4×6×3)^4 = 504^4 or apply the exponent to just one number like 7×4×6×3^4! This ignores the distributive property of exponents. Always distribute the exponent to each individual 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 7×4×6×3 first and then raise it to the 4th power?

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You could do that mathematically, but it creates much larger numbers to work with! 5044 504^4 is a huge calculation, while 74446434 7^4\cdot4^4\cdot6^4\cdot3^4 keeps the numbers manageable and shows the power distribution rule clearly.

Does this rule work with addition inside parentheses too?

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No! The power distribution rule (ab)n=anbn (a\cdot b)^n = a^n\cdot b^n only works with multiplication. For addition like (a+b)n (a+b)^n , you need to use binomial expansion or other methods.

What if there are different exponents on the factors already?

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Use the power of a power rule! If you have (x2y3)4 (x^2\cdot y^3)^4 , it becomes x24y34=x8y12 x^{2\cdot4}\cdot y^{3\cdot4} = x^8\cdot y^{12} . Multiply the exponents together.

How do I remember when to distribute the exponent?

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Think of it as sharing equally! When factors are multiplied inside parentheses, the outside exponent gets shared with each factor. It's like giving everyone the same number of copies.

Is there a shortcut for checking my answer?

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Yes! Count the factors inside the parentheses. You should have the same number of terms in your final answer, each with the same exponent. Here: 4 factors become 4 terms with exponent 4.

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