Adding, Subtracting, and Multiplying Polynomials

Add or Subtract to Simplify:
 (x + 2x²) + (4x² + 7x)

• 6x² + 8x
• 8x² + 6x
• 2x² + 6x
• 2x² + 8x

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

• 2x² + 3x +1
• -2x² - 11x -4
• 2x² + 5x -7
• -2x² + 11x -4

(4x³-5x²+3x)+(-2x³-x²+6x)

• 2x³-6x²-9x
• 2x³+6x²+9x
• -2x³-6x²+9x
• 2x³-6x²+9x

Simplify the expression.
(4n⁴ - 8n + 4) - (8n² + 4n⁴ + 1)

• -8n² - 8n + 3 
• -7n² - 8n + 3 
• -6n² - 8n + 3
• -7n² - 4n + 3

Add or Subtract to Simplify:
(6b³ + 6 - b⁴) - (8b³ - 6b⁴ + 2)

• 4b⁴ - 2b³ + 7
• 5b⁴ - 2b³ + 4
• b⁴ - 2b³ + 7
• 5b⁴ - 2b³ + 7

Simplify:

5(3x+2)

• 3x+10

• 15x+10

• 15x-10

• 3x-10

(2x + 3)(3x + 4)

• 6x² + 17x + 7
• 6x² + 17x + 12
• 6x² + 8x + 12
• 6x² + 9x + 12

Multiply
(4x+3)(2x-1)

• 8x²-2x-3
• 8x-3
• 8x²+6x-3
• 8x²+2x-3

(x-7)²

• x²-49
• x²+49
• x²-14x+49
• x²-14x-49

(4x+1)(5x−2)

• 20x² + 3x − 2
• 20x² − 11x + 5
• 20x² − 18x + 2
• 20x² − 3x − 2