Logarithmic and Quadratic Equations

The video tutorial explains how to solve a logarithmic equation by combining logarithms using the quotient property, converting it into an exponential equation, and solving the resulting quadratic equation using the quadratic formula. The solutions are simplified using prime factorization, and their validity is verified by checking conditions for logarithms. Decimal approximations of the solutions are also provided.

What property of logarithms is used to combine two logs with the same base?

• Quotient Property

• Product Property

• Power Property

• Change of Base Formula

Tags

CCSS.HSF.BF.B.5

When converting a logarithmic equation to an exponential equation, what becomes the exponent?

• The constant on the right side

• The base of the logarithm

• The number part of the logarithm

• The difference of the logs

What is the first step in solving the quadratic equation derived from the exponential equation?

• Factor the equation

• Simplify the square root

• Set the equation equal to zero

• Use the quadratic formula

Tags

CCSS.HSA-REI.B.4B

Which formula is used to solve the quadratic equation when it is not factorable?

• Logarithmic Formula

• Quadratic Formula

• Binomial Theorem

• Pythagorean Theorem

Tags

CCSS.HSA-REI.B.4B

What is the prime factorization of 192 used for in the solution process?

• To determine the exponent

• To simplify the square root

• To find the base of the logarithm

• To verify the solutions

How many solutions are found for the quadratic equation?

• One

• Two

• None

• Three

What must be true about the solutions to ensure they are valid for the original logarithmic equation?

• They must be less than zero

• They must be greater than zero

• They must be greater than -4

• They must be integers

Tags

CCSS.8.EE.A.2

What is the approximate decimal value of the solution 4 + 4√3?

• 10.9282

• 8.9282

• 6.9282

• 12.9282

Tags

CCSS.8.EE.A.2

What is the approximate decimal value of the solution 4 - 4√3?

• -2.9282

• -4.9282

• -3.9282

• -1.9282

Why is it important to verify the solutions of the quadratic equation?

• To ensure they are integers

• To confirm they satisfy the original logarithmic equation

• To check if they are positive

• To determine if they are rational numbers