Solving a logarithmic equation using the quadratic formula

Solving a logarithmic equation using the quadratic formula

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial reviews logarithm properties and demonstrates solving a logarithmic equation using the FOIL method and quadratic formula. The teacher guides students through simplification, calculation, and analysis of results, highlighting potential extraneous solutions.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result when you rewrite the sum of two logarithms as a single logarithm?

The quotient of the arguments

The product of the arguments

The sum of the arguments

The difference of the arguments

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which property of logarithms allows you to equate two expressions if their logarithms with the same base are equal?

Equality Property

Power Property

Quotient Property

Product Property

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving a quadratic equation?

Set the equation to zero

Simplify the equation

Factor the equation

Use the quadratic formula

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When a quadratic equation cannot be factored, which method can be used to solve it?

Substitution

Graphing

Completing the square

Quadratic formula

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to check for negative values when solving logarithmic equations?

Negative values are extraneous

Negative values are always solutions

Logarithms of negative numbers are undefined

Negative values simplify the equation