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##### Calculate the volume of the cylinder

Lesson 40 - Algebra recap

1. Angles around a point add up to? 2. Simplify 20ab/5a 3. 1.34 × 204. 1025. Round 0.004417 to 2 s.f.6. What is 0.75hrs in minutes?7. - 9 × - 8 + 5 8. What is 3% of £25?

Challenge

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Quizizz

Substitution

##### a) Expand and simplify the expression 3(x + 2). b) Expand and simplify the expression 2(3x - 5). c) Expand and simplify the expression -5(2x + 4). d) Expand and simplify the expression -4(3x - 1). e) Expand and simplify the expression 2x(5x + 3). f) Expand and simplify the expression -6x(x - 4). g) Expand and simplify the expression -3y(2x + 5). h) Expand and simplify the expression x2(4x - 3)

Expanding brackets 1

##### a) Expand and simplify the expression (2x - 1)(x + 4)b) Expand and simplify the expression (3x + 2)(x - 3)c) Expand and simplify the expression (x - 2)(x + 5)d) Expand and simplify the expression (2x + 1)2e) Expand and simplify the expression (x + 2)2f) Expand and simplify the expression (3x - 2)(x + 3)g) Expand and simplify the expression (x + 4)2h) Expand and simplify the expression (2x - 3)(x + 2)

Expanding brackets 2

Factorising

Factorising

Solving 1

Solving 2

##### Solve for x in the inequality 3x + 5 > 11Solve for y in the inequality 2y - 7 < 5Solve for x in the inequality 2x - 3 ≥ 9Solve for y in the inequality 4(y + 2) ≤ 16Solve for x in the inequality 5x - 3 < 2x + 9Solve for y in the inequality 3(y - 4) > 2(y + 1)Solve for x in the inequality 2x + 7 ≤ 3(x - 1) + 4. Solve for y in the inequality 4(y + 3) - 2 ≥ 2(y - 1) + 10.

Inequalities

Laws of indices 1

Laws of indices 2

Sequences