# Naitomea re write as a logarithmic equation

Properties 3 and 4 leads to a nice relationship between the logarithm and exponential function. Study each case carefully before you start looking at the worked examples below. Types of Logarithmic Equations The first type looks like this… If you have a single logarithm on each side of the equation having the same base then you can set the arguments equal to each other and solve.

The arguments here are the algebraic expressions represented by M and N. The second type looks like this… If you have a single logarithm on one side of the equation then you can express it as an exponential equation and solve. Solve the logarithmic equation Since we want to transform the left side into a single logarithmic equation, then we should use the Product Rule in reverse to condense it.

I know you got this part down! Just a big caution. Substitute back into the original logarithmic equation and verify if it yields a true statement. Solve the logarithmic equation Start by condensing the log expressions on the left into a single logarithm using the Product Rule.

What we want is to have a single log expression on each side of the equation. Be ready though to solve for a quadratic equation since x will have a power of 2. But you need to move everything on one side while forcing the opposite side equal to 0. Set each factor equal to zero then solve for x.

Solve the logarithmic equation This is an interesting problem.

What we have here are differences of logarithmic expressions in both sides of the equation. Simplify or condense the logs in both sides by using the Quotient Rule which looks like this… Given The difference of logs is telling us to use the Quotient Rule.

Convert the subtraction operation outside into a division operation inside the parenthesis. Do it to both sides of the equations. I think we are ready to set each argument equal to each other since we are able to reduce the problem to have a single log expression on each side of the equation.

Drop the logs, set the arguments stuff inside the parenthesis equal to each other. Note that this is a Rational Equation.

One way to solve it is to get its Cross Product. It looks like this after getting its Cross Product. Simplify both sides by the Distributive Property. At this point, we realize that it is just a Quadratic Equation. No big deal then. Move everything to one side, and that forces one side of the equation to be equal to zero.

This is easily factorable.1. Solve exponential and logarithmic equations. When you solve an equation, you “undo” what has been done addition to undo subtraction, multiplication to undo division.

Since exponents and logarithms are inverses of each other, it follows that in order to solve a logarithmic equation. Section Rewriting Equations and Formulas 25 Work with a partner.

a. Write a formula for the volume V of a prism. Solve the formula for h. Use the new formula to ﬁ nd the height of the prism. b. Write a formula for the volume V of a pyramid. Solve the formula for B. Use the new formula to ﬁ nd the area of the base of the pyramid.

## Solving Exponential Equations Algebraically

c. Write a formula for the volume V. High School Math Solutions – Logarithmic Equation Calculator Logarithmic equations are equations involving logarithms. In this segment we will cover equations with logarithms. We will rewrite the log equation exponentially using the definition of logs to help us get the x outside of the log.

If you need a review on the definition of log functions, feel free to go to Tutorial Logarithmic . log 9 v 2 + log 9 w 2 Rewrite each equation in exponential form.

41) log 17 = 2 42) log 9 81 = 2 43) log 14 = 2 44) log 6 1 = 0 45) log = 2. 1 Rewriting Exponential and Logarithmic equations When solving an exponential or logarithmic equation, the rst step is to rewrite the equation so that the unknown is isolated on one side. To do this we use all the mad skillz we have been developing in rewriting equations.

1. 7x = 14 x = log 7 14 2. y4 = y = y = 4 3. log 9 d = 3 d =