Answer:
9(2x-1)
Step-by-step explanation:
common factor of both 9 and 18 is 9
thus, you can take a 9 out
9(2x-1)
(to check if it is correct, you can expand it, and if it is the same as original then it is correct )
Answer:
(3)3 - 21/3 + 6 --> 9 - 27/3 --> -18/3
8.75 you can use a calculator on this one
A^2 + b^2 = c^2
a and b are the same length
2a^2 = (5sqrt2)^2
2a^2= 25•2
a^2= 25•2/2
a^2 = 25
a =5