distributing & combining like terms in expressions
DESCRIPTION
Distributing & Combining Like Terms in Expressions. Distributing & Combining Like Terms. Distribute first Then combine like terms Example 1: 3(x + 5) - 8. Get rid of any zero pairs. Count up what you have left and that will be your answer!. Group 2. Answer: 3x + 7. Group 1. Group 3. - PowerPoint PPT PresentationTRANSCRIPT
Distributing & Combining Like Terms in Expressions
Distributing & Combining Like Terms
• Distribute first• Then combine like terms
Example 1: 3(x + 5) - 8
Group 1 Group 2 Group 3
Get rid of any zero pairs.
Count up what you have left and that will be your answer!
Answer: 3x + 7
Example 2
2(3x + 2) + 2x
Group 1 Group 2
Get rid of any zero pairs. Then count up what you have left. What you have left will be your answer.
Answer: 8x + 4
Example 3
2(x – 4) + -3x + 5
Group 2
Group 1
Cross of zero pairs. Answer:-x - 3
Try these with your algebra tiles
1. 2(2x – 3) + 62. 2(2x - 4) + 103. -5x + 2(x – 3)4. 5(x – 2) + 75. 3(-x + 3) + x - 26. 2(x - 4) + 2(-x + 5)
4x - 3
4x + 6
-3x - 6
5x - 3
-2x + 7
2