1. Simplifying Expressions
Literacy
Memory
Research
Fill the blanks with these words; collect, expression, variable, like, unknown, equation
a x a = a2
2 x b = 2b
a x b = ab
2 ÷ b = 2 b
Search Google for Khan Academy Origins of Algebra and watch the short video.
Write down ten facts from the video relating to the origins of algebra.
2x + 3x B) 2x + 3x = 25
A is an ______, B is an ______. In A x is a ____. In B x is an ____ that you can find the value of. You can ____ the terms in A because they are ____.
Skills Practice
Stretch
E – Simplify
7n2 + 8p – p + 5n2
8x2 – 3x – 3x2
-7b + 2a + 3b – 5a
-3g2 + 2g – 4g2 + 4g
5c x 2d
6h x 3i
7z x 3z
8s x 5s
A – Simplify
5x + 6x + 3x
8m + 2m – 3m
9y – 4y + 2y
4b + 5b – b
9p – 7p + 4p – 5p
4c + 3c – 11c
C – Simplify
3 x 4d
5 x 2m
7f x 2
8s x 5
14c ÷ 2
20v ÷ 5
B – Simplify
3 x t
5 x g
b ÷ 3
7 ÷ w
m x n
p x q
D – Simplify by collecting like terms
10a + 8b + 3a
2b + 6c + 4b
8a a + 3
6h h + 11
7m + 2n + 3m + 4n
5k + 2l – 2k + 3l
F – Which of these expressions simplify to give -3x – 4y
a) 6x + 4y – 9x – 4y
b) 12x + 3y – 9x – 7y
c) 4x + 7y – 7x – 3y
d) x + 2y – 4x – 6y