1/5 Adding Polynomials

Simplify the polynomial expression:

(-3x + 4) + (8x - 5)

• 5x - 1

• 5x - 9

• 11x - 1

• 5x - 9

• None of these

Simplify the polynomial expression:

(2x + 5y - z) + (-6x - 4y + 7z)

• -4x - y + 6z

• -4x + 6y + 6z

• -4x + y + 6z

• 4x + y +6z

• None of these

Simplify the polynomial expression:

(x³ - 2x² + 3) + (2x³ + 3x² - 1)

• 3x³ - 2x² + 3x + 2

• 3x³ + x² + 2

• 3x³ - 5x² - 2

• None of these

• 3x³ - x² + 1

A rectangle has a width of (2x + 3) and length (2x - 4). What is the perimeter of the rectangle?

• 4x² - 2x - 12

• 4x - 12

• 8x - 2

• 4x - 1

Simplify the Polynomial Expression:

(3y² + y³ - 5) + (4y² - 4y + 2y³ + 8)

• -y⁴ + 2y³ - y - 4

• 4y³ + 3y² - 3y + 1

• 4y² + 3y³ - y + 3

• 3y³ + 7y² - 4y + 3

Simplify the polynomial expression:

3w - 8k + 12w + w - 5k

• 15w + 3k

• 15w - 13k

• 16w + 3k

• 16w - 13k

Simplify the polynomial expression:

-m + 17m - 12c + 3m + 4c + 21c

• 21m + 37c

• 19m - 12c

• 19m + 13c

• 20m + 12c

What is the perimeter of a rectangle, in terms of x, with length of 4x-9 and a length of 8x + 2?

• 32x² - 64x - 18

• 32x² - 18

• 12x - 7

• 24x - 14

Simplify: 5x² + 14y - 9y + x² - 7x² - y

• x² - 4y

• -x² + 4y

• 13x² + 24y

• -13x² + 13y

Simplify the polynomial expression:

(2xy - 3x² + 4y - 5) + (-3xy + 4y² - 3y + 8)

• -xy + y² + y + 3

• None of these

• -xy + x² + y + 3

• xy + 3x² + 4y² + y + 3

• -xy - 3x² + 4y² + y + 3