Tutorial - Solving logarithmic equations ex 15, log4(-x)+log4(x+10)=2

Tutorial - Solving logarithmic equations ex 15, log4(-x)+log4(x+10)=2

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains how to solve a logarithmic equation by combining logarithms, applying the distributive property, converting to exponential form, and using factoring techniques. It emphasizes the importance of checking solutions for validity, especially when dealing with negative numbers in logarithms.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What property allows us to combine two logarithms into one?

Associative Property

Properties of Logarithms

Property of Equality

Distributive Property

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of converting the logarithmic equation to exponential form?

4^2 = -X^2 - 10X

4^2 = -X^2 + 10X

4^2 = X^2 + 10X

4^2 = X^2 - 10X

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which technique is used to solve the quadratic equation obtained from the logarithmic equation?

Quadratic Formula

Factoring

Graphing

Completing the Square

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the solutions to the equation after factoring?

X = 8 and X = 2

X = -8 and X = 2

X = 8 and X = -2

X = -8 and X = -2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to verify solutions in logarithmic equations?

To ensure they are positive

To check for extraneous solutions

To confirm they are integers

To validate the original equation