(b) −4𝑑 2 × −3𝑑
ST9 Mathematics Revision Exercise
Topic: Algebra
Date: 11/20/2024
1 Expand and simplify.
(a) (𝑥 + 3)(𝑥 + 4)
………………………… [2]
3 Solve these equations.
(a) 𝑥 + 4 = 60
………………………… [2]
(b) (4𝑥 − 1)(3𝑥 − 5)
………………………… [1]
(b) 3𝑦 − 2 = 4
………………………… [2]
(c) 3(4 + 𝑚) + 2(5 + 2𝑚)
………………………… [2]
………………………… [2]
(c) 5(𝑥 + 3) = 25
2 Simplify these expressions.
(a) 𝑦 2 × 𝑦
………………………… [2]
………………………… [2]
1
4 Solve these equations.
(a)
𝑦
2
(e)
180
𝑥−5
= 15
− 13 = 5
………………………… [2]
(b)
5𝑦 −2
4
= 3
………………………… [2]
(d) 6(3𝑎 − 4) = 3(4𝑎 − 3)
………………………… [2]
(c)
240
4𝑎
= 3
………………………… [2]
(e) 𝑥 + 2(𝑥 + 1) + 3(𝑥 + 2) ) + 3(𝑥 + 3) = 80
………………………… [2]
(d)
32
𝑐+5
= 4
………………………… [2]
………………………… [3]
2