Answer:
(8x+9)(8x-9)
Step-by-step explanation:
64x^2= 8x*8x
-81= 9*-9
(8x-9)(8x+9)
64x^2 - 81
Rewriting
(8x)^2 - 9^2
We recognize that this is the difference of squares
a^2 - b^2 = (a-b)(a+b)
hope it will help you...........
The answer is 40 miles per hour. If you divide 1200/30 you would get 40. Hope this helps!
