Polynomials Exponents

Which of the following are polynomials?

Classify by number of terms:

5x² – 6x + 3

• Monomial

• Binomial

• Trinomial

• 4-Term Polynomial

Simplify:
b⁴ x b⁻³ ÷ b⁻²

• b³
• b⁻³
• b⁵
• b⁻¹

Simplify the following:
x^-3

• 1/x^-3
• x³
• 1/x
• 1/x³

Simplify
(45x⁶y⁹) / (5x⁴y²)

• 9x²/y⁷

• 40x²y⁷
• 9x²y⁷
• 9x¹⁰y¹¹

Simplify: 
(a⁴b¹⁹c²¹d^-14)⁰

• 1
• 0
• a⁴b¹⁹c²¹d^-14
• a^-4b^-19c^-21d¹⁴