Write each equation in its equivalent exponential form. 5= logb 32
Ch. 4 - Exponential and Logarithmic Functions

Chapter 5, Problem 5
Solve each exponential equation in Exercises 1–22 by expressing each side as a power of the same base and then equating exponents. 22x-1=32
Verified step by step guidance1
Recognize that the equation is \$2^{2x-1} = 32$. The goal is to express both sides as powers of the same base.
Recall that 32 can be written as a power of 2 because \$32 = 2^5$.
Rewrite the equation using this expression: \$2^{2x-1} = 2^5$.
Since the bases are the same and the equation holds true, set the exponents equal to each other: \$2x - 1 = 5$.
Solve the resulting linear equation for \(x\) by isolating \(x\).

Verified video answer for a similar problem:
This video solution was recommended by our tutors as helpful for the problem above.
Video duration:
2mWas this helpful?
Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Exponential Equations
An exponential equation is one in which variables appear as exponents. Solving such equations often involves rewriting both sides to have the same base, allowing the exponents to be set equal to each other. This method simplifies the problem to solving a linear equation in the exponent.
Recommended video:
Solving Exponential Equations Using Logs
Expressing Numbers as Powers of the Same Base
To solve exponential equations, it is crucial to rewrite each side as a power of the same base. For example, 32 can be expressed as 2^5 since 2 multiplied by itself 5 times equals 32. This step enables direct comparison of exponents.
Recommended video:
Higher Powers of i
Equating Exponents
Once both sides of an equation have the same base, the exponents can be set equal because if a^m = a^n, then m = n. This principle allows the conversion of an exponential equation into a simpler algebraic equation to solve for the variable.
Recommended video:
Guided course
Rational Exponents
Related Practice
Textbook Question
880
views
Textbook Question
In Exercises 1–10, approximate each number using a calculator. Round your answer to three decimal places. 4-1.5
794
views
Textbook Question
Use properties of logarithms to expand each logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator. log(1000x)
928
views
Textbook Question
Write each equation in its equivalent exponential form. log6 216 = y
839
views
Textbook Question
Write each equation in its equivalent exponential form. 2 = log9 x
1092
views
Textbook Question
In Exercises 5–9, graph f and g in the same rectangular coordinate system. Use transformations of the graph of f to obtain the graph of g. Graph and give equations of all asymptotes. Use the graphs to determine each function's domain and range. f(x) = 3x and g(x) = -3x
1064
views
