Adding Subtracting Multiplying Dividing Polynomials

(5x+6y)+(5y-6x)= ?

• -x+11y

• 11x+11y

• x+-11y

• 11x-y

(2x+3n) - (6x+3n)=?

• 4x

• 8x-6n

• 4x+6n

• -4x

(20x² + 12y²) - (10x² + 15y³)

• 10x² + 3y²

• 10x² + 12y² - 15y³

• 10x² - 3x²

• 10x² + 3y³

(5x + 6x² ) + ( 6x²+ 23x³)

• 5x + 12x² +23x³

• 12x² +28x³

• 5x + 29x² +6x²

Simplify:

2x ( -2x -3)

• -4x - 3

• x² - 3

• -4x² - 6x

• -4x - 6

Multiply.

(x + 5)(x + 4)

• (x + 5)(x + 4)

• x² + 20x + 9

• x² + 9x + 20

• x² - 9x + 54

Multiply.

(2x - 1)(x + 2)

• 2x² - 5x - 2

• 2x² + 3x - 2

• 2x² + 3x + 2

• 2x² - 5x + 2

Multiply.

(x - 7)(x + 7)

• x² + 7x - 49

• x² - 7x + 49

• x² + 49

• x² - 49

Divide (6x²+12x) by 3x

• 2x+4

• 2+6/3x

• 2+4/x

• 3+6/2x

(n² + 16n + 69) ÷ (n + 6), what is the remainder?

• 10

• 9

• -10

• -9