Simplify: 4x - 2x³ + 5x³ - 4x + 5

• 3x³ + 5

• 3x³ + 8x + 5

• 3x² + 5

• 7x³ + 8x + 5

Add: ( 3 - 2x + 2x² ) + ( 4x - 5 + 3x² )

• 7x - 7x + 5x²

• 5x² + 2x - 2

• 5x²

• 5x² + 6x + 8

Add: ( 5x + 2 ) + ( 4x + 5 )

Simplify: ( 4a³ - 8a - 4a² ) + ( 7a³ - 7 - 6a )

• 11a³ - 4a² - 14a - 7

• 5a³ - 4a² - 14a - 7

• 5a³ - 4a² - 20a - 7

• 5a³ - 9a² - 20a - 7

What is the perimeter of the triangle shown?

***Perimeter is the SUM of ALL sides!***

• 9r² + r - 5

• 9r⁴ + r² - 4

• 9r² - r + 4

• 9r² + r - 4

What is the perimeter of the rectangle?

**Perimeter is the SUM of ALL sides!***

• x² + 8x - 5

• 2x² + 16x - 10

• 2x² + 10x - 8

• 6x - 2

• 3x² - x

• 4x² + 2x

• 3x² + 3x

• 3x² + 2x

• -2n² - 12n + 5

• 14n² - 8n + 3

• -2n² - 4n + 3

• -2n² - 4n + 5

• 2x² + x + 2

• x + 2

• 2x² + x - 10

• x - 10

Which of these is in the correct order of powers? There could be more than 1 answer.