Basic Operation on Polynomials

Find the product:
(3r-4)(7r-5)

• 21r²-43r+20

• 21r+43r²+9

• 7r+12r

• r+2r

(-5k) - (+8k)

• -13k

• 3k

• -3k

• 13k

(12a - 3b) - (3a + 4b)

• 15a + b

• 9a + b

• 9a - 7b

• 15a + 7b

(m + 2)(m - 4)

2b - (-5b)

• -3b

• 3b

• 7b

• -7b

Add the following polynomials: 
(6x + 4x⁴ - 3x²) + (7x⁴ + 5x² + 8x)

• 11x⁴  + 2x² + 14x

• 16x⁴  + x² + 14x

• 11x⁴  + x² + 14x

• 11x⁴  + 2x² + 10x

Add the following polynomials:
 (5x + 2) + (4x + 5)

• 9x -7

• -9x-11

• 9x+7

• x+7

Add the following polynomials:
(6n² - 7n⁴+8) +  (6 + 8n + 4n⁴)

• -3n⁴+ 6n²+8n+14

• -n⁴-2n²+8n+7

• -n⁴ + 6n²+8n+7

• -3n⁴+ 6n²+8n+7

Subtract the following polynomials:
(3x²-3x+2) - (x²-2x+1)

• 2x²+x+1

• 2x²-5x+3

• 2x²-x+1

• 4x²-5x+3

Subtract the following polynomials:
(a³ - 2a²) - (-4a³ + 4a²)

• -5a⁶ - 5a⁴

• 5a³  - 2a²

• -2a³  - 6a²

• 5a³ - 6a²