Math Problem Statement

x^7 = 3^3 x 3

Solution

We start with the given equation:

x7=33×3x^7 = 3^3 \times 3

Step 1: Simplify the right-hand side

The right-hand side of the equation involves exponents of 3. We can simplify it as follows:

33×3=343^3 \times 3 = 3^4

Thus, the equation becomes:

x7=34x^7 = 3^4

Step 2: Solve for xx

To isolate xx, we take the 7th root of both sides:

x=(34)1/7x = (3^4)^{1/7}

We can simplify this further using the property of exponents:

x=34/7x = 3^{4/7}

Thus, the solution to the equation is:

x=34/7x = 3^{4/7}

If you need a numerical value:

x2.0801x \approx 2.0801

Would you like more details or have any questions?


Here are 5 related questions for further exploration:

  1. How would the solution change if the exponent on xx were different, say x5x^5?
  2. What happens if we had 34×323^4 \times 3^2 on the right-hand side instead?
  3. How can we use logarithms to solve this equation?
  4. How does this problem change if we are solving for x7=35x^7 = 3^5?
  5. What are the properties of exponents that allow us to simplify powers of numbers?

Tip: Always check if you can simplify both sides of an equation before solving for the variable—it often makes the problem much easier to manage!

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Math Problem Analysis

Mathematical Concepts

Exponents
Algebraic Simplification

Formulas

a^m * a^n = a^(m+n)
x^(1/n) = nth root of x

Theorems

Laws of Exponents

Suitable Grade Level

Grades 9-12