Find the degree of the monomial: -4a²b³

• 4
• 0
• 6
• 5

Find the degree of the monomial: 8

• 8
• 0
• 1
• None of the above

Find the degree of the monomial: -21a³b

• -21
• 0
• 4
• 3

Simplify: 8x³ - 2x³

• 6x³
• 10x³
• 6x6
• -6x³

Simplify: 22a²b² + 9a²b²

• 13a²b²
• 192a²b²
• 31a4b4
• 31a²b²

Simplify: 3x(x + 9)

• 3x² + 27x
• 30x²
• 30x³
• None of the above

Simplify: -x³(5x² - 3x)

• $15x^9$

• $-2x^9$
  

• $-5x^5+3x^4$
  

• $-5x^6-3x^3$
  

Simplify: (x + 3)(x - 8)

• x² + 5x - 24
• x² + 5x - 24
• x² - 11x + 24
• x² - 5x - 24

(2x - 5)(3x - 7)

• 6x² - 29x - 35

• 6x² - 29x + 35

• 6x² + 29x - 35

• None of the above

Simplify: (a + 7)²

• 49
• a² + 7a + 49
• a² + 49
• a² + 14a + 49