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C OMBINING L IKE T ERMS Section 1.4
L IKE T ERMS U NLIKE T ERMS
L IKE T ERMS
H ANDS -O N E QUATIONS Blue Pawn: Positive x White Pawn: Negative x Green Cube: Positive numbers Red Cube: Negative numbers
R EPRESENT 3x+5+2x+2
R EPRESENT 2x+3+5x-6
R EPRESENT -3x+1-2x-6
R EPRESENT 4x-8-5x+2
S IMPLEST F ORM Contains no like terms and no parentheses.
C OMBINING L IKE T ERMS
C OEFFICIENT It is the numerical factor. The number being multiplied by the variable. To combine like terms we can simply combine the coefficients of the like terms.
S IMPLIFY :
H OMEWORK Worksheet
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1.–15 + (–19) + 16 = ANSWER –18 2.6(–x)(–4) = ANSWER 24x Warm-Up for Lesson 2.6 ? ?
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Essential Question: Describe an everyday situation in which the distributive property and mental math would be helpful.
WARMUPS 1.3XY + 4XY – 6X + 8X (2XY)(4XY) + (4XY)(7XY) 3. 6X – 5X + 3X + 9Y – 3Y 4.(3X)(3X)(3X)(3X) 5.DRAW A FROG.
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