Polynomials - adding and multiplying

Add: (3x² + 2x + 1) + (2x² - 4x - 5) + (3x - 1)

• 5x² + 6x - 7
• 8x² - 3x - 5
• 5x² + x - 5
• 6x² + 8x + 5

Which of these is in Standard Form? *More than 1.

Find the sum.
(3y² + y³ - 5) + (4y² -4y + 2y³ + 8)

• 3y³ + 7y² - 4y + 3
• 4y² + 3y³ - y + 3
• -y⁴ + 2y³ -y - 4
• 4y³ + 3y² -3y + 1

Add or Subtract to Simplify:
(4n⁴ - 8n + 4) - (8n² + 4n⁴ + 1)

• -8n² - 8n + 3 
• -7n² - 8n + 3 
• -6n² - 8n + 3
• -7n² - 4n + 3

Multiply

(x - 3)(x +10)

• x^2 - 7x + 13

• x^2 - 6x - 30

• x^2 + 7x - 30

• x^2 + 13x + 30

Multiply:

(3y - 1)(y - 2)

• 3y² - 7y + 2

• 3y² - 7y - 2

• 3y² - 3y + 2

• 3y² - 5y + 2

Multiply:

(5y + 2)(y - 4)

• 5y² - 2y - 8

• 5y² - 18y - 8

• 5y² - 22y + 8

• 5y² + 22y - 8

Multiply:

(a + 1)(a² - 5a + 1)

• a³ - 6a² - 6a + 1

• a³ - 4a² + 6a + 1

• a³ + 6a² - 4a + 1

• a³ - 4a² - 4a + 1

Find the product for the following:

(x − 6)²

• x² + 36

• x² + 12x − 36

• x² − 12x + 36

• x² − 36