10MAT Algebra Revision 2

Simplifying (Dividing)

Inequalities

Substitution

Expanding (2 brackets)

Solving for x

100

4x/2

100

How do you write "x is less than 5" with an inequality sign?

x < 5

100

If a = 2 and b = 3, what is ab?

ab = 6

100

(x + 1)(x + 1)

x² + 2x + 1

100

4x = 36

x = 9

200

6a/3a

200

How do you write "x is greater than 5 and less than 10" with inequality signs?

5 < x < 10

200

If a = -1 and b = 2, what does 4ab equal?

4ab = -8

200

(x + 1)(x - 1)

x² - 1

200

x² = 81

x = 9

300

4a²b³/2ab

2ab²

300

Solve the inequation: x + 2 > 3

x > 1

300

If a = -4 and b = 3, what is 4a + b?

4a + b = -13

300

(x + 2)(x + 8)

x² + 10x + 16

300

2x²= 18

x = 3

400

12x⁷/2x³

6x⁴

400

Solve the inequation 4x < 12

x < 3

400

If a = 3 and b = -2, what is a + 3b?

a + 3b = -3

400

(2x + 1)(x + 2)

2x² + 5x + 2

400

7x - 2 = 3x + 30

x = 8

500

21a⁵b⁵/3a³

7a²b⁵

500

Solve the inequation 5x - 2 > 8

x > 2

500

If a = -2 and b = -4, what is 2a²b²?

2a²b² = 128

500

(2x + 2)(2x + 1)

4x² + 6x + 2

500

10x - 4 = 8x + 10

x = 7