Finding Expressions

If the perimeter of the rectangle below is 100 ft. Write an equation to represent the perimeter.

• (2x+3)+(x-1)=100

• (2x+3)(x-1)=100

• 2(2x+3)+2(x-1)=100

• x=16

Find the area of a rectangle with length (x - 5) and width (3x + 1).

• 3x²+16x-5

• 3x²-14x+5

• 3x²-14x-5

Find the perimeter of the figure.

• P=3x+2

• P=6x+6

• P=3x+5

• P=6x+4

Find the LCD of these fractions.

• (x+2)(x-2)

• (x+2)(x+1)

• (x+2)(x-2)(x+1)

• (x-2)(x+1)

Find the least common denominator of the expression

• 18

• 6x

• 3xy

• 6xy

What is the least common multiple of 3x² - 27 and 5x²+10x-75? HINT: Think least common denominator!

• 3(x+3)(x-3)(x+5)

• 15(x+3)(x+3)(x+5)

• 15(x+3)(x-3)(x+5)

• 5(x+3)(x-3)(x+5)

Find the LCD of these fractions.

• (x+2)(x-2)

• (x+2)

• (x-2)

• (x²-4)(x+2)

What is the least common multiple of x²-16 and x²+4x-32?

HINT: Think least common denominator!

• (x + 4)(x – 4)(x + 8)

• (x-4)2 (x+8)

• (x + 4)(x – 4)

• (x - 4)(x-4)2(x + 8)

Simplify the following:

• A

• B

• C

• D

Simplify the following:

• A

• B

• C

• D