Why can't cross multiplication be used for the equations discussed?

Solving Rational Equations with LCD Techniques

Interactive Video
•
Mathematics
•
6th - 10th Grade
•
Medium

Emma Peterson
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Because cross multiplication only works with linear equations
Because the equations do not contain any fractions
Because there are more than two fractions in the equation
Because there is only one fraction in the equation
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the least common denominator (LCD) used in the first example?
4X
3X
2X
5X
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does multiplying the numerators by the LCD accomplish?
It simplifies the equation to a quadratic form
It reduces the equation to a single fraction
It converts the rational equation into an exponential equation
It eliminates the fractions from the equation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the LCD method preferred over cross multiplication in these examples?
It simplifies the equation to avoid large powers of X
It directly provides the solution without further steps
It requires less algebraic manipulation
It only works with linear equations
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result after applying the LCD method to the first equation?
X = 8
X = -8
7X = -36
7X = -56
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final solution for the first equation?
X = -7
X = -8
X = 7
X = 8
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What step follows after applying the LCD and simplifying the equation?
Graphing the equation
Factoring the polynomial
Solving the resulting linear equation
Cross multiplying the remaining terms
Create a free account and access millions of resources
Similar Resources on Wayground
11 questions
Cross Products and Proportions

Interactive video
•
7th - 10th Grade
6 questions
Solving 2-Step Equations with Animation

Interactive video
•
6th - 10th Grade
11 questions
Solving Equations with Fractions

Interactive video
•
7th - 10th Grade
11 questions
Exploring Adding and Subtracting Rational Expressions

Interactive video
•
6th - 10th Grade
11 questions
Solving Linear Equations with Fractions

Interactive video
•
6th - 10th Grade
11 questions
Solving Rational Equations: Key Concepts and Examples

Interactive video
•
6th - 10th Grade
11 questions
Rational Equations and Their Solutions

Interactive video
•
7th - 10th Grade
11 questions
Solving Systems of Equations by Graphing

Interactive video
•
7th - 10th Grade
Popular Resources on Wayground
25 questions
Equations of Circles

Quiz
•
10th - 11th Grade
30 questions
Week 5 Memory Builder 1 (Multiplication and Division Facts)

Quiz
•
9th Grade
33 questions
Unit 3 Summative - Summer School: Immune System

Quiz
•
10th Grade
10 questions
Writing and Identifying Ratios Practice

Quiz
•
5th - 6th Grade
36 questions
Prime and Composite Numbers

Quiz
•
5th Grade
14 questions
Exterior and Interior angles of Polygons

Quiz
•
8th Grade
37 questions
Camp Re-cap Week 1 (no regression)

Quiz
•
9th - 12th Grade
46 questions
Biology Semester 1 Review

Quiz
•
10th Grade
Discover more resources for Mathematics
25 questions
Equations of Circles

Quiz
•
10th - 11th Grade
30 questions
Week 5 Memory Builder 1 (Multiplication and Division Facts)

Quiz
•
9th Grade
10 questions
Writing and Identifying Ratios Practice

Quiz
•
5th - 6th Grade
14 questions
Exterior and Interior angles of Polygons

Quiz
•
8th Grade
37 questions
Camp Re-cap Week 1 (no regression)

Quiz
•
9th - 12th Grade