Expressions and Distribution

Evaluating Expressions

100

Evaluate x + 12, when x = 5

17

200

Evaluate x - 22(-2x)+1, when x = 2

91

300

Evaluate (a - 3) / (b - 3a), where a = 4, b = 2

1/-10 or -0.1

400

Evaluate a2 - b3 + 3abc - c, where a = 3, b = 2, c = -5

-85

500

Evaluate a2(3 - 4) + (-b(3-2)), where a = -3, b = 4

2

Simplifying Expressions

100

2x - 3x + 4

-x + 4

200

3a + 2a² - 14 + 2

2a² + 3a - 12

300

-22 + 3a(2) - 2a + 19b + 2(b)

4a + 21b - 22

400

a(b-c) + 2b - 3ac + 12

ab - 4ac + 2b + 12

500

-a(2 - 4) + b(3) - 14b + 2a² - 14a³

-14a³ + 2a² + 2a - 11b

Distribution

100

3(2x - 5)

6x - 15

200

-(x + 4) + 5x + 4

4x

300

3(x² + 2) - 89x - (3x + 9)

3x² - 92x - 3

400

1/2(4x - 12) + 3(x + 1)

5x - 3

500

1/3(3x - 12y) - (x² + 3) - 12

- x² + x - 4y - 15