50 likes | 154 Views
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.
E N D
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
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 1 Group 2 Cross of zero pairs. Answer: -x - 3
Try these with your algebra tiles • 2(2x – 3) + 6 • 2(2x - 4) + 10 • -5x + 2(x – 3) • 5(x – 2) + 7 • 3(-x + 3) + x - 2 • 2(x - 4) + 2(-x + 5) 4x - 3 4x + 6 -3x - 6 5x - 3 -2x + 7 2