Rationalizing Denominators and Binomials

Rationalizing Denominators and Binomials

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

Created by

Thomas White

FREE Resource

This video lesson covers multiplying binomials with radicals and rationalizing denominators. It begins with a review of binomial multiplication and introduces the concept of conjugates to eliminate radicals from denominators. The lesson includes several example problems to illustrate these concepts and concludes with a discussion on advanced topics and generalization of conjugates.

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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main focus of this lesson?

Subtracting binomials with radicals

Dividing binomials with radicals

Multiplying binomials with radicals and rationalizing the denominator

Adding binomials with radicals

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the term 'binomial' refer to?

A parenthesis with two terms

A parenthesis with four terms

A parenthesis with three terms

A single term

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method is commonly used to multiply binomials?

FOIL method

SOIL method

TOIL method

MOIL method

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of squaring a binomial (a + b)^2?

a^2 - b^2

a^2 - 2ab + b^2

a^2 + 2ab + b^2

a^2 + b^2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of rationalizing the denominator?

To divide radicals in the numerator

To add radicals to the denominator

To multiply radicals in the numerator

To remove radicals from the denominator

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a conjugate in the context of binomials?

A binomial with different terms but same signs

A binomial with the same terms and signs

A binomial with different terms and signs

A binomial with the same terms but opposite signs

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example problem, what is the result of multiplying (3 + √7)(3 - √7)?

9 - 2√7

9 + 2√7

9 - 7

9 + 7

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