area=legnth times width
we notice this is a special case
(a+b)(a-b)=a^2-b^2
area=(a+3b)(a-3b)=a^2-9b^2
area=a^2-9b^2
Answer: y+2x=15
Step-by-step explanation:
Given
Two points A and B are (4,7) and (6,3) respectively
Using two-point form

Putting values

3 = q/11....multiply both sides by 11, this cancels out the 11's on the right
11 * 3 = q
33 = q
6 / 2/5
6 * 5/2
30/2
15
15 pieces of wire
Answer: 15 pieces of wire