Adding and Subtracting Polynomials

What is (5x²-2x-4) + (x² - 2x + 3)

• 6x² - 4x - 1

• 6x² + 4x + 1

• 6x² - 4x + 1

• 6x² + 4x - 1

Add: (3x - 2) + (3x² + 6x)

• 3x² + 9x - 2
• 6x² + 4x
• 3x² + 3x - 2
• 6x² + 6x - 2

Add the polynomials.
(2x + 5y) + (3x - 2y)

• 3x + 5y
• 5x + 3y
• 5x + 7y
• 7xy + 1xy

What is the standard form of the polynomial,
 9x² + 5x + 27 + 2x³

• 27 + 5x + 9x² + 2x³
• 9x² + 5x + 2x³ + 27
• 9x² + 5x + 27 + 2x³
• 2x³ + 9x² + 5x + 27

Subtract: (2a² + 5a + 3) -(a² - 3a - 4)

• 3a² + 2a - 1
• a² + 8a + 7
• 3a² + 8a + 7
• a² + 2a - 1

What is the degree of the polynomial 3x⁴ + 2x² + 5x ?

• 1
• 2
• 3
• 4

Add or Subtract to Simplify:
(5x + x² - 4) - (4x - x² + 6)

• 2x² + x + 2 
• x + 2
• 2x² + x - 10 
• x - 10 

What is (3x² + 2x - 6) - (2x² - 3x + 1)

• 1x² + 5x + 5

• 1x² - 5x - 7

• 1x² + 5x - 7

• 1x² - 5x + 7