Answer: A.
.
Step-by-step explanation:
- A difference of squares problem is factored as :

- For this both terms in the form of squares and a minus sign between them.
From all the options only option A has both terms square and they minus sign between them.
Also, 
Here a= 3x and b= 4
Hence, the correct answer is A.
.
Answer:
option 2
Step-by-step explanation:
Substitute x = - 5 into f(x) , that is
f(- 5) = 4(- 5) - 7 = - 20 - 7 = - 27
I Got 0.01041666666 As An Answer <span />
Answer:
a I think please be right