Simplifying Algebraic Expressions Learning Objectives Able to simplify
Simplifying Algebraic Expressions Learning Objectives: • Able to simplify an expression involving multiplication • Begin to start expanding brackets
Your turn… Simplify the following expressions. Copy the question into your workbook, writing the answer next to it. 1. a + b 2 a + b 2. 3 a – 2 a + 4 b + b a + 5 b 3. 8 a + 5 a – 6 a 7 a 4. 12 b + 5 a + 3 a – 8 b 8 a + 4 b 5. 4 a + 6 b + 7 c + 9 a – 2 b – c 13 a + 4 b + 6 c 6. 9 x a 9 a 7. 13 x b 13 b 8. g x h gh 9. 9 x j x j 9 j 3 10. 6 x p x q x p x 2 12 p 2 q
Expanding Brackets • Expanding brackets is often called “multiplying out” brackets because we use multiplication to get rid of the brackets.
Expanding Brackets • To expand a bracket, multiply the term outside the bracket by everything inside the bracket x 5(a + 3) x 5 a + 15
Expanding Brackets 7(n + 6) 8(p – 3)
Your turn… • Expand the following brackets: a) b) c) d) e) f) g) 4(x + 5) 3(y + 9) 5(a – 2) 11(r – 4) a(b + 3) n(n + 5) p(8 – p) 4 x + 20 3 y + 27 5 a - 10 11 r – 44 ab + 3 a n 2 + 5 n 8 p – p 2
Home Learning TASKS A and B: Complete the blue sheet TASK C: Complete the white sheet in your exercise book. You can write your answers on the sheet. DUE: Monday 9 th January
Level 5/6 Expanding Brackets Learning Objectives: • Able to expand a bracket • Able to expand multiple brackets and simplify the expression • Able to expand brackets involving negatives 03/03/2021
Algebra – A Recap • Look at the expression below. 4 a + 9 • If a = 5, which of the following is the value of the expression? 54 18 56 29 29 49
Algebra – A recap • Simplify the following expressions: a) 6 a + 4 + 5 a + 3 b) 9 b + 8 + 5 b – 6 c) 4 a + 6 b – 3 a + 7 b
Algebra – A recap • Simplify the following expressions: a) 8 x y b) m x m c) 5 x a x b
Algebra – A recap • Expand the following brackets: 8(r + 4) 7(t – 3) 11(p + 3) + 10(p – 2)
Algebra – A recap • In your pairs, complete the Tarsia puzzle • Complete the worksheet which will assess your knowledge of the whole Algebra unit.
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