Math Problem Statement

Question content area top Part 1 Find all solutions of the equation below. 2 Superscript 5 x minus 1 Baseline equals 3 Question content area bottom Part 1 The​ solution(s) is/are xequals    enter your response here. ​(Simplify your answer. Use a comma to separate answers as needed. Round to four decimal places as​ needed.)

Solution

The given equation is:

25x1=32^{5x - 1} = 3

Steps to solve:

  1. Take the natural logarithm (ln) on both sides of the equation to help simplify the exponent: ln(25x1)=ln(3)\ln(2^{5x - 1}) = \ln(3)

  2. Apply the logarithmic property ln(ab)=bln(a)\ln(a^b) = b \ln(a) to move the exponent down: (5x1)ln(2)=ln(3)(5x - 1) \ln(2) = \ln(3)

  3. Solve for xx:

    First, isolate 5x15x - 1: 5x1=ln(3)ln(2)5x - 1 = \frac{\ln(3)}{\ln(2)}

    Now, add 1 to both sides: 5x=ln(3)ln(2)+15x = \frac{\ln(3)}{\ln(2)} + 1

  4. Solve for xx: x=ln(3)ln(2)+15x = \frac{\frac{\ln(3)}{\ln(2)} + 1}{5}

Now, let's calculate the values of ln(3)\ln(3) and ln(2)\ln(2) to get the final answer.

ln(3)1.0986,ln(2)0.6931\ln(3) \approx 1.0986, \quad \ln(2) \approx 0.6931

Thus,

x=1.09860.6931+15x = \frac{\frac{1.0986}{0.6931} + 1}{5}

x=1.585+15x = \frac{1.585 + 1}{5}

x=2.58550.5170x = \frac{2.585}{5} \approx 0.5170

Final Answer:

The solution is approximately: x0.5170x \approx 0.5170

Would you like further explanation or assistance with another problem?

Here are some related questions to explore:

  1. How can you use logarithms to solve exponential equations?
  2. What is the inverse of the exponential function 2x2^x?
  3. How do you solve equations with logarithms as the base?
  4. What is the natural logarithm and why is it often used in solving equations like these?
  5. How do you graph the function 25x12^{5x - 1} and find its intercept?

Tip: When solving equations involving exponents, logarithms are often the easiest way to "bring down" the exponent and isolate the variable.

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Math Problem Analysis

Mathematical Concepts

Exponential Equations
Logarithms

Formulas

ln(a^b) = b * ln(a)
x = (ln(3)/ln(2) + 1)/5

Theorems

Logarithmic properties
Exponential equation solving

Suitable Grade Level

Grades 9-11