Polynomials

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

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

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

True or False: you could add these two terms? 2x² and 7x⁵

• True

• False

Find the sum of 2mn and 9mn.

• $11m^2n^2$

• 7mn

• -7mn

• 11mn

What is the perimeter of the triangle shown? (write your answer in standard form)

• 9r² + r - 5

• 9r⁴ + r² - 4

• 9r² - r + 4

• 9r² + r - 4

Find the sum.
(3y² + y³ - 5) + (4y² -4y + 2y³ + 8)

• 3y³ + 7y² - 4y + 3
• 4y² + 3y³ - y + 3
• -y⁴ + 2y³ -y - 4
• 4y³ + 3y² -3y + 1

IF you are adding/subtracting two or more "polynomials", THEN any missing terms should be replaced by a _________ .

Add the polynomials: (4x^2 + 3x - 2) + (2x^2 - x + 1)

• 8x^2 + 2x - 1

• 6x^2 + 2x - 1

• 2x^2 + 2x - 1

• 6x^2 + 4x - 3