Polynomial-add, sub ,mult

Which of the following are examples of like terms?

• 2 and 2x
• y³ and x³
• y and x
• -3x and 3x

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4

Combine like terms to simplify:
 (5x + 2) + (4x + 5)

• 9x -7
• -9x-11
• 9x+7
• x+7

Add the polynomials (x-2) and (x²+3)

• x²+x+1
• x³+5
• x³+1
• x³-1

(4a + 6ab - b) + (-2a - ab + 3b)

• 2a + 7ab + 2b
• 6a + 5ab - 2b
• 6a + 7ab + 4b
• 2a + 5ab + 2b

5(2k² + 3k - 9)

• 10k² + 15k - 45
• 10k² + 15k -14
• 10k² - 15k + 45
• 10k² + 15 - 45k

4k²(6k² + 9kq - 5q²)

• 24k² + 36k³q - 20k²q²
• 24k⁴ + 36kq - 20k²q²
• 24k⁴  + 36k³q - 20k²q²
• 24k + 36 kq - 20 k²q

-5x⁶(3x² - 12x + 30)

• -15x⁸ + 60x⁷ - 150x⁶

• 15x⁸ - 60x⁷ - 150x⁶

• 8x⁶ - 17x + 35

• -8x⁶ + 17x - 35x²

Classify by number of terms:
3x³ – 6x

• Monomial
• Binomial
• Trinomial
• 4-Term Polynomial

Classify by degree of polynomial:
3x³ – 6x

• Constant
• Linear
• Quadratic
• Cubic