Understanding Logarithmic Equations

The video tutorial explains how to solve equations with exponents and variables by using logarithms. It covers taking the log of both sides, applying the power rule, distributing terms, collecting like terms, factoring, and solving for x. The process is demonstrated step-by-step, with a final calculation to find the value of x.

What is the initial problem that requires the use of logarithms?

• Equations with only constants

• Equations with no exponents

• Equations with exponents containing variables

• Equations with like bases

Why do we take the logarithm of both sides of the equation?

• To simplify the coefficients

• To change the base of the numbers

• To eliminate the variables

• To bring down the exponents

Tags

CCSS.HSF-IF.C.8B

What rule is used to move the exponents down in the equation?

• Chain Rule

• Power Rule

• Quotient Rule

• Product Rule

What is the purpose of distributing the logarithm on the left side of the equation?

• To eliminate the logarithm

• To simplify the equation

• To separate the terms

• To combine the terms

Tags

CCSS.8.EE.C.7B

After distributing, what is the next step in solving the equation?

• Combine all constants

• Collect all terms with x on one side

• Multiply both sides by a constant

• Divide both sides by a constant

Tags

CCSS.7.EE.B.4A

What do you do after collecting all x terms on one side?

• Add a constant to both sides

• Factor out the x

• Multiply by the coefficient

• Subtract a constant from both sides

Tags

CCSS.6.EE.B.7

How do you solve for x after factoring it out?

• Subtract the coefficient from both sides

• Multiply both sides by the coefficient

• Divide both sides by the coefficient

• Add the coefficient to both sides

Tags

CCSS.8.EE.C.7B

What is the final step in verifying the solution?

• Checking with a different method

• Graphing the equation

• Using a calculator

• Rewriting the equation

Tags

CCSS.7.EE.B.4A

What is the result of solving the equation for x?

• One

• Negative seven point six three eight

• Zero

• Positive seven point six three eight

What should you be careful about when using a calculator for this problem?

• Rounding the numbers

• Entering the numbers in the correct order

• Using the correct logarithm base

• Closing all parentheses correctly