Adding and Subtracting Polynomials

• 3n²+4n

• -3n²+4n

• 3n²+20n

• 3n²-4n

• 23x^5_11x

• -5x⁵-x

• 23x⁵+11x

• 5x⁵+x

Add: (3x² + 2x + 1) + (2x² - 4x - 5) + (3x - 1)

• 5x² + 6x - 7

• 8x² - 3x - 5

• 5x² + x - 5

• 6x² + 8x + 5

• 4w²-11w

• 2w²-11w

• 2w²+11w

• 4w²+w

(3x²+xy-5y²) +
(2x²-xy+3y²)

• 5x²-2xy+8y²

• 5x²-2y²

• 5x²+2y²

• 5x²+2xy-8y²

Darnell and Stephanie work for competing refreshment stand companies. Darian's profit can be modeled using the polynomial 2c² - 7c - 200, where c is the number of items sold. Stephanie's profit can be modeled with the polynomial c² + 8c - 100. Write a polynomial to represent the difference between their profits.

• c² -15c - 100

• 3c² -c - 300

• c² +15c + 300

• 3c² -15c - 100

The total area of the playground, the larger rectangle, is 
16x² − 5x + 2. The area of the play area, the smaller rectangle, is 10x² + 3x − 1. Write an expression to represent the area of the sidewalk.

• 6x² − 8x + 3

• 16x² − 8x + 3

• 16x² − 2x + 1

An airline charges $(20x + 4) for a ticket and $(4x) for a seat upgrade, and $(2x + 1) for premium movies on a flight. Which expression represents the total price you would pay for a seat with an upgrade, and premium movies?

• $31x

• $24x + 4x + 3x

• $24x + 7

• $26x + 5

What is the perimeter of the triangle shown?

• 9r²+r-5

• 9r⁴+r²-4

• 9r²-r+4

• 9r²+r-4

What is (5x²-2x-4) + (x² - 2x + 3)

• 6x² - 4x - 1

• 6x² + 4x + 1

• 6x² - 4x + 1

• 6x² + 4x - 1