Adding and Subtracting Polynomials

(5 + 3x) + (x - 12) =

• 4x + 7

• 4x - 7

• 7x - 4

• 4x - 17

(3x - 4) - (8x - 2) =

• -11x - 2

• - 5x + 2

• - 5x - 2

• - 5x - 6

(9x + 8a) + (6x + a) =

• 15x + 9a

• 15x + 8a

• 14x + 9a

• 14x + 8a

(3x - 10h) - (x - 8h) =

• 4x - 18h

• 2x - 18h

• 2x + 2h

• 2x - 2h

(6x² + x) + (7x² - x) =

• 13x² + 2x
• 13x² - 2x
• 13x²
• -13x² 

(7x - x²) - (9x² + 2x) =

• 10x² + 5x
• -10x² - 5x
• - 5x + 10x²
• 5x - 10x²

(5x² - 7xy) - (-2xy +3x²) =

• 2x² - 5xy
• 2x² + 5xy
• - 2x² - 5xy
• - 2x² + 5xy

- (3x²y + xy²) - (3xy² - x²y)

• 2x²y + 4xy²
• 2x²y - 4xy²
• - 2x²y + 4xy²
• - 2x²y - 4xy²

Find the sum.

2(2x² + 5x - 7) + ( 3 - 4x² - 6x)

• 2x² + 3x +1

• -2x² - 11x -4

• 4x - 11

• -2x² + 11x -4

Which is an example of a linear polynomial?

• x² - 5

• 6x + 4

• 5x⁵

• 2x³ - 9x²