Polynomials Adding Subtracting and Multiplication

• 3y⁴+3y³+7y²+4y

• 3y⁴+3y³+7y²+4y+6

• 3y⁴+3y³+7y²+6^

• 3y⁴+3y³+7y²+4y-6^

Simplify: (6x + 4x⁴ - 3x²) + (7x⁴ + 5x² + 8x)

• 11x⁴ + 2x² + 14x

• 16x⁴ + x² + 14x

• 11x⁴ + x² + 14x

• 11x⁴ + 2x² + 10x

Find the sum.

(2x² + 5x - 7) + (- 4x² + 6x+3)

• 2x² + 3x +1

• -2x² - 11x -4

• 2x²+ 5x -7

• -2x² + 11x -4

Add (12x + 5) + (3x - 7)

• 9x - 12

• 9x - 2

• 15x -12

• 15x - 2

Which operation, when performed on two polynomials, always results in a polynomial? Select all that apply.

• ADDITION

• DIVISION

• SUBSTRACTION

• MULTIPLICATION

(4x² - 6x - 8) + (3x² - 2x - 9)

• x² - 4x + 1

• 7x² - 8x - 17

• 12x² + 12x + 72

• 7x⁴ - 8x² - 17

Find the sum.

(2x² + 5x - 7) + ( 3 - 4x² + 6x)

• 2x² + 3x +1

• -2x² - 11x -4

• 2x²+ 5x -7

• -2x² + 11x -4

Simplify.

 (4x - 2x³) + (5x³ - 4x + 5)

• 3x³ + 5

• 3x³ + 8x + 5

• 3x² + 5

• 7x³ + 8x + 5

Simplify the expression.

(4a3 - 8a - 4a2) + (7a3 - 7 - 6a)

• 5a3 - 4a2 - 20a - 7

• 11a3 - 4a2 - 14a - 7

• 5a3 - 9a2 - 20a - 7

• 5a3 - 4a2 - 14a - 7

Which expression is equivalent to (10+7r+r²) + (-6r²-18+5r)?

• -7r²+2r+8

• 7r²+12r+8

• -r²+12r-8

• 7r²+2r-8