Simplifying Expressions 3

What is the perimeter of the rectangle?

• x²+8x-5

• 2x²+16x-10

• 2x²+10x-8

• 6x-2

What is the perimeter of the triangle shown?

• 9r²+r-5
• 9r⁴+r²-4
• 9r²-r+4
• 9r²+r-4

.

• F

• G

• H

• J

.

• F

• G

• H

• J

Simplify

2x⁷ - 4(2x³ - 1) + 3(6x⁷ + 2x³)

• 20x⁷ - 2x³ + 4

• 20x⁷ - 14x³ + 4

• 20x⁷ + 2x³ + 4

• 20x⁷ + 14x³ + 4

• Already Simplified

Simplify 8(2x⁷ - x) + 3(x² - 5x) + 10x³

• 10x³ + 16x⁷ + 3x² - 23x

• 16x⁷ + 10x³ + 3x² - 7x

• 16x⁷ + 10x³ + 3x² - 23x

• 16x⁷ + 10x³ + 3x² + 23x

• Already in standard form

.

• F

• G

• H

• J

• A

• B

• C

• D