Answer:
n=0
Step-by-step explanation:
Clear parenthesis w/ distribution:
3(-7n+1)=-21n+3
Move everything over to one side:
6n+3=-21n+3
6n=21n Subtract the 3 on the right.
-15n=0 Subtract the 21.
n=0 Divide the -15.
The left side 1.54070215
×
10
^16 does not equal to the right side 12
, which means that the given statement is false.
Answer:
.
Step-by-step explanation:
Notice that the first two factors are in the form 
, which is equal to 
. Start by combining and expanding these two factors:
Let 
.
.
.
This expression can now be expressed as 
. 
stands the unit imaginary number, where 
. Unless is raised to a certain power other than 
, it can be treated just like a constant.
Expand this expression using FOIL:
.
