Adding and Subtracting Polynomials

Add: (3x - 2) + (3x² + 6x)

• 3x² + 9x - 2

• 6x² + 4x

• 3x² + 3x - 2

• 6x² + 6x - 2

(3x + 4y - 3z) - (2x - 6y + 7z)

• x + 10y - 10z

• -x +10y - 10z

• x -10y - 10z

• -x -10y - 10z

(5x⁴ - 4x³ - 2x² + x - 19) - (x⁴ + 5x³ + 8x² + x + 5)

• 4x⁴ - 9x³ - 10x² - 24

• 4x⁴ - 9x³ - 10x² - 2x - 24

• 4x⁴ - 9x³ - 10x² + 2x - 24

• -4x⁴ - 9x³ - 10x² - 24

Combine like terms to simplify:

(5x + 2) + (4x + 5)

• 9x -7

• -9x-11

• 9x+7

• x+7

Find the sum.

(3x³ + 3x² – 4x + 5) + (x³ – 2x² + x – 4)

• 4x³ + 1x² – 3x + 1

• 2x³ + 1x² - 5x + 9

• 6x³ + 1x - 1x² - 3

• 3x⁵ +1x - 1x⁵ - 3x

( 3x + 7 ) + ( 6x + 7 )

• -3x + 14

• 9x - 14

• 9x

• 9x + 14

(10m - 7n) + (2m - n)

• 12m - 8n

• 12m - 6n

• 12m + 8

• 12m - 6

Combine like terms to simplify:

(12x + 7) + (3x + 8)

• 15x + 15

• 15x + 7

• 15x - 15

• 15x + 8

(4x + 3) + (x - 5)

• 5x + 2

• 5x - 2

• 5x + 8

• 5x - 8

Combine like terms to simplify: (9x + 11) + (x - 3)

• 10x + 14

• 9x + 14

• 9x + 8

• 10x + 8