Copyright © Swun MathCopyright © Swun Math Grade 8 Unit 4 Lesson 5 C TEInput/Model
(Teacher Presents)
Directions: Expand the expression and simplify.
- 2(x + 4)
Solution:
2(푥푥 + 4) 푚푚푚푚푚푚푚푚푚푚 2 푔푔푔푔푔푔푔푔푔푔푚푚 푔푔표표 (푥푥 + 4)
(푥푥 + 4) + (푥푥 + 4)
푥푥 + 푥푥 + 4 + 4
2 푥푥 + 8- 3(y – 3)
Solution:
3(푦푦 − 3)means 3 groups of (푦푦− 3)
(푦푦− 3) + (푦푦− 3) + (푦푦− 3)
푦푦 + 푦푦 + 푦푦− 3 − 3 − 3
3 푦푦− 9