I do not understand.

To solve a logarithmic equation, rewrite the equation in exponential form and solve for the variable. Let both sides be exponents of the base e.

By now you should know that when the base of the exponent and the base of the logarithm are the same, the left side can be written x. The equation can now be written Step 3: The exact answer is and the approximate answer is Check: You can check your answer in two ways.

You could graph the function Ln x -8 and see where it crosses the x-axis. If you are correct, the graph should cross the x-axis at the answer you derived algebraically. You can also check your answer by substituting the value of x in the initial equation and determine whether the left side equals the right side.

For example, if Ln 2, It does, and you are correct. Isolate the logarithmic term before you convert the logarithmic equation to an exponential equation. Divide both sides of the original equation by 7: Convert the logarithmic equation to an exponential equation: If no base is indicated, it means the base of the logarithm is Recall also that logarithms are exponents, so the exponent is.

The equation Step 3: Divide both sides of the above equation by 3: You can check your answer in two ways: If you choose graphing, the x-intercept should be the same as the answer you derived.

If you choose substitution, the value of the left side of the original equation should equal the value of the right side of the equation after you have calculated the value of each side based on your answer for x. Solve for x in the equation Solution: If we require that x be any real number greater than 3, all three terms will be valid.

If all three terms are valid, then the equation is valid.

Simplify the left side of the above equation: By the properties of logarithms, we know that Step 3: The equation can now be written Step 4: Let each side of the above equation be the exponent of the base e:If you want to solve a logarithm, you can rewrite it in exponential form and solve it that way!

Follow along with this tutorial to practice solving a logarithm by first converting it to exponential form. A function of the form () = +, where c is a constant, is also considered an exponential function and can be rewritten as () =, with.

As functions of a real variable, exponential functions are uniquely characterized by the fact that the growth rate of such a function (that is, its derivative) is directly proportional to the value of the function.

Improve your math knowledge with free questions in "Convert between exponential and logarithmic form: rational bases" and thousands of other math skills.

R.1 Convert between exponential and logarithmic form: rational bases. clouds. Take a break. Let's see what else you know. Back to practice. Algebra 2 R.1 Convert between exponential and. LOGARITHMS AND THEIR PROPERTIES Definition of a logarithm: If and is a constant, then if and only if.

In the equation is referred to as the logarithm, is the base, and is the argument. Convert the exponential equation to a logarithmic equation using the logarithm base of the right side equals the exponent.

Solving simple logarithm equations and what I mean by simple logarithm equations is basically logarithm equation that is in logarithm form.

so basically you have a log.

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