Answer:
(3a-1)(3a+1)
Step-by-step explanation:
We can quickly see with this problem that it is the difference of two squares as 9a^2 is (3a)^2 and 1 is 1^2 and therefore can factorise quickly using this rule.
x^2-y^2 = (x-y)(x+y) where x = 3a and y = 1
I got u mate it’s 2x^2+7x+5 also i recommend getting photo math it’s an app that does it all for u it’s free and it shows the work too !!
Welp this would haft to me 68
- Perimeter of a rectangle = 2b + 2h , with b = base and h = height
With the units that we have, this is our equation:
Firstly, foil 2(2v + 13) and 2(v - 5):
Next, combine like terms and <u>your answer will be </u>