Rectangle A has a length of 2x + 6 and a width of 3x. Rectangle B has a length of x + 2 and an area of 12 square units greater than Rectangle A’s area. What is a simplified expression for the width of Rectangle B?

x + 2
x + 1
6x + 6
6(x + 2)(x + 1)

Question

Rectangle A has a length of 2x + 6 and a width of 3x. Rectangle B has a length of x + 2 and an area of 12 square units greater than Rectangle A’s area. What is a simplified expression for the width of Rectangle B?  

x + 2
x + 1
6x + 6
6(x + 2)(x + 1)

jlastino · Answer

Caclulate the area of Rectangle A first
Add 12 to that area to find the area rectangle B
then divide that area by the length of rectangle B to get the width

anonymous · Answer

the bottom one??

jlastino · Answer

Can you show me what you've done so far?