Adding, Subtracting, and Multiplying Polynomials

Find the sum.
(2x² + 5x - 7) + ( 3 - 4x² + 6x)

• 2x² + 3x +1

• -2x² - 11x -4

• 2x² + 5x -7

• -2x² + 11x -4

(4x+1)(5x−2)

• 20x² + 3x − 2

• 20x² − 11x + 5

• 20x² − 18x + 2

• 20x² − 3x − 2

(4n⁴ - 8n + 4) - (8n² + 4n⁴ + 1)

• -8n² - 8n + 3 

• -7n² - 8n + 3 

• -6n² - 8n + 3

• -7n² - 4n + 3

(4x³-5x²+3x)+(-2x³-x²+6x)

• 2x³-6x²-9x

• 2x³+6x²+9x

• -2x³-6x²+9x

• 2x³-6x²+9x

(4x³-5x²+3x)+(-2x³-x²+6x)

• 2x³-6x²-9x

• 2x³+6x²+9x

• -2x³-6x²+9x

• 2x³-6x²+9x

• None of these

(3x²+xy-5y²) + (2x²-xy+3y²)

• 5x²-2xy+8y²

• 5x²-2y²

• 5x²+2y²

• 5x²+2xy-8y²

How many terms are in the following polynomial?
3x³ - 2x + 8x -16

• -16

• 2

• 3

• 8

Combine Like Terms:
4y + 3x³ + 2y + 8x³ - 6y

• 11x³

• 11x³ + 12y

• 5x³

• 11x⁶

Simplify the expression:
(4v³ + 3v - 8v⁴) + (4v - 8v⁴ - 7)

• -17v⁴ + 4v³ + 2v - 7

• -16v⁴ + 4v³ + 10v - 7

• -16v⁴ + 4v³ + 7v - 7

• -16v⁴ + 4v³ + 2v - 7

-6k + 7k=

• k

• -k

• 12k

• -12k