
Lesson 4.5: Factor Expressions
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Mathematics
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7th Grade
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Practice Problem
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Medium
Standards-aligned
Reed Carbone
Used 63+ times
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7 Slides • 4 Questions
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Lesson 4.5
Factor Expressions
Some text here about the topic of discussion
2
Definitions:
Factor: The opposite of distributing. We will do this by finding out what number divides both of our terms and pull that divisor to the outside of parenthesis.
Greatest Common Factor: The greatest common factor is the largest possible number that divides both of the terms.
Subject | Subject
Some text here about the topic of discussion
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Review: Find the GCF of the terms
1. 3 and 6
12 and 24
100 and 35
18 and 27
-3 and 9
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Example: Factor 12x + 10
Step 1: Find the GCF of both terms
Step 2: Divide 12 and 10 by their GCF
Step 3: Rewrite the GCF on the outside and the two quotients on the inside.
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Multiple Choice
Factor the expression: 10x + 5
5(2x + 5)
10(x + 5)
5(10x + 5)
5(2x + 1)
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Multiple Choice
Factor the expression: 6x + 9
6(x + 9)
9(6x + 1)
3(2x + 3)
3(2x + 9)
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Example: Factor -4x - 2
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Multiple Choice
Factor -10x - 2
-2(5x + 1)
2(5x + 1)
-2(-5x - 1)
-2(5x - 1)
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Multiple Choice
Factor: -81x + 9
-9(-9x -9)
-9(9x - 1)
-9(9x + 1)
-9(81x - 1)
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Example: A rectangle has area 240 - 400x. Factor this expression to create the possible dimensions for the rectangle.
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Conclusion: Write two complete sentences about what you learned.
Lesson 4.5
Factor Expressions
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