Add and Subtract Polynomials Perimeter

Which expression represents the perimeter of the triangle?

• 8xy + 3

• 5x + y + 3

• 5x + 4y + 3

• 6x + 3y + 3

The measure of two side of a triangle is x²+ 2x. If the perimeter is 4x²+ x, what is the measure of the third side?

• 3x² - x

• 4x² + 2x

• 3x² + 3x

• 3x² + 2x

Find the perimeter.

• 39x - 7

• 38x + 7

• 39x + 7

• 38x -9

• 3y⁴+3y³+7y²+4y

• 3y⁴+3y³+7y²+4y+6

• 3y⁴+3y³+7y²+6^

• 3y⁴+3y³+7y²+4y-6^

Sarah is planning to install a fence around her rectangular vegetable garden. If the length of the garden is represented by 'x+2' and the width by 'x-3', what is the total length of the fence needed to enclose the garden?

• x²+8x-5

• 2x²+16x-10

• 2x²+10x-8

• 6x-2

What is the perimeter of the triangle shown in terms of r?

Chris drew a triangle on his paper. He labeled one side 2x + 3, another side with 5x² - 3x + 7 and the third side with -3x² + 2. He then found the perimeter of his triangle. Which of the following polynomials represents the perimeter of Chris's triangle?

• -2x² + x + 12

• 2x² - x + 12

• 8x² + 5x - 12

• -8x² - x + 12

What is the perimeter of the triangle shown?

• 9r²+r-5

• 9r⁴+r²-4

• 9r²-r+4

• 9r²+r-4

Find the perimeter.

• 5x + 2

• 10x + 4

• 10x - 4

• 5x - 2

Find the perimeter.

• 1.5x + 4.5

• 3x + 8

• 3x + 9

• 1.5x + 4