Answer:
2x
Step-by-step explanation:
you take 3x-x you get 2x. then you take 2x_2x you get 0.then -x_3x you get 2x.you take 0+2x you get 2x that is the answer
(6x + 9y)(6x - 9y)
We can use the difference of squares which states that a² - b² = (a + b)(a - b), in this case, a = 6x and b = 9y so the answer is (6x + 9y)(6x - 9y).
Check the picture below.
I think its A
x/2 - 9 = -9
