Mixed Operations with Polynomials

If A = (r+1) and B = (r-3), find AB.

• r² - 3r -2

• r² - 3

• -2r -2 

• r² - 2r -3

• 9n³ + 4n

• 7n³ + 6

• -3n³ + 2

• 7n⁶ + 6

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

• 3x + 5y

• 5x + 3y

• 5x + 7y

• 7xy + 1xy

Add the polynomials:
(3x³+3x²–4x+5) + (x³–2x²+x–4)

• 4x³ + 1x² – 3x + 1

• 2x³ + 1x² - 5x + 9

• 6x³ + 1x - 1x² - 3

• 3x⁵ +1x - 1x⁵ - 3x

(4x²+x) - (x²+2x)

• 3x² - x

• 4x² + 2x

• 3x² + 3x

• 3x² + 2x

Simplify the expression.
(4n⁴-8n+4) - (8n²+4n⁴+1)

• -8n² - 8n + 3 

• -7n² - 8n + 3 

• -6n² - 8n + 3

• -7n² - 4n + 3

Multiply:
(4x+1)(5x−2)

• 20x² + 3x − 2

• 20x² − 11x + 5

• 20x² − 18x + 2

• 20x² − 3x − 2

Find the difference. 
(3-2x+2x²) - (4x-5+3x²)

• x_² + 6x + 8

• 2x² + 5x - 7

• -x² -6x + 8

• -2x² + 11x - 4

Find the product.
(x+7)²

• x² + 7x + 7x + 49

• x² + 7x + 7

• 7x² + x + 7

• x² + 14x + 49

Which expression is equivalent to:
(2x²+5x-7)(x-2)?

• 2x³ - x² + 17x -14

• 2x³ + 9x² + 3x +14

• 2x³ + x² + 3x +14

• 2x³ + x² - 17x +14