True because it had a strict pattern and measurable proportions. <span />
Answer:
1.) 12x-10
2.)18x+10
Step-by-step explanation:
Answer:


Step-by-step explanation:

To compute x times y must use foil on the right hand side.
First: 
Outer: 
Inner: 
Last: 
------------------------------------Add like terms:

----------------


Multiply top and bottom by bottom's conjugate:

Foil the top and just do first and last of Foil for the bottom since the bottom contains multiplying conjugates:

Replace
with -1:



Answer:
answer is b I think
Step-by-step explanation:
because it is
I dont think you can do this without finding derivatives.