Solving a radical equation using rational powers with two solutions

Solving a radical equation using rational powers with two solutions

Assessment

Interactive Video

Mathematics, Information Technology (IT), Architecture

11th Grade - University

Hard

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The video tutorial covers solving radical equations by expressing rational powers as radicals. It explains the steps to isolate and solve these equations, emphasizing the power rule of exponents. The tutorial also discusses the importance of using absolute values when dealing with even roots and odd powers. Finally, it highlights the need to verify solutions to identify any extraneous results.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving a radical equation?

Multiply both sides by the radical

Convert the equation to a logarithmic form

Add a constant to both sides

Isolate the radical or expression with a rational power

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you simplify an expression with a rational power?

Multiply by a constant

Convert it to a logarithm

Use the power rule of exponents

Divide by the base

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When simplifying an expression with an even root, when should you use absolute value?

When the index is odd

When the base is negative

When the result is a constant

When the result is an odd power

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of simplifying the 4th root of X to the 12th power?

X^4

X^2

X^3

X^6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the absolute value of 4 cubed?

16

32

64

8

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the solutions to the equation X + 3 to the 2/3 = 4?

X = 2 and X = -2

X = 5 and X = -11

X = 8 and X = -8

X = 4 and X = -4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is an extraneous solution?

A solution that is a complex number

A solution that does not satisfy the original equation

A solution that satisfies the original equation

A solution that is a fraction