Why is it necessary to multiply by the conjugate instead of just the square root?
Practicing rationalizing the denominator with binomial denominator

Interactive Video
•
Mathematics, Science
•
11th Grade - University
•
Hard
Quizizz Content
FREE Resource
Read more
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To simplify the expression to a single term
To avoid complex numbers
To ensure the result is a real number
To perform a difference of two squares
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of multiplying two binomials by their conjugates?
A sum of two squares
A product of two squares
A difference of two squares
A quotient of two squares
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the middle terms when multiplying binomials by their conjugates?
They remain unchanged
They become complex
They cancel out
They double
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the simplified form of the denominator in the expression given in the video?
1 - sqrt 9
1 - 3
-2
5 halves
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which property is applied in the numerator during the simplification process?
Commutative Property
Associative Property
Distributive Property
Identity Property
Similar Resources on Quizizz
2 questions
Rationalizing the denominator with two radicals in the denominator

Interactive video
•
11th Grade - University
6 questions
Rationalizing the denominator with two radicals in the denominator

Interactive video
•
11th Grade - University
6 questions
Tutorial - Dividing complex numbers ex 18, 7/(8 + i)

Interactive video
•
11th Grade - University
6 questions
Rationalize the denominator to simplify a trig expression

Interactive video
•
11th Grade - University
2 questions
Rationalizing the denominator with a radical in the numerator and denominator

Interactive video
•
11th Grade - University
6 questions
Learn how to divide a radical binomial by rationalizing the denominator

Interactive video
•
11th Grade - University
2 questions
Pre-Calculus - Using the conjugate to simplify a rational complex number (3-i) / (1+i)

Interactive video
•
11th Grade - University
6 questions
Simplifying a rational radical expression by multiplying by the conjugate

Interactive video
•
11th Grade - University
Popular Resources on Quizizz
15 questions
Multiplication Facts

Quiz
•
4th Grade
20 questions
Math Review - Grade 6

Quiz
•
6th Grade
20 questions
math review

Quiz
•
4th Grade
5 questions
capitalization in sentences

Quiz
•
5th - 8th Grade
10 questions
Juneteenth History and Significance

Interactive video
•
5th - 8th Grade
15 questions
Adding and Subtracting Fractions

Quiz
•
5th Grade
10 questions
R2H Day One Internship Expectation Review Guidelines

Quiz
•
Professional Development
12 questions
Dividing Fractions

Quiz
•
6th Grade