I'm in desperate need of help, I have a math exam soon, i'd appreciate it if someone gave me a step by step solution to simplify these problems:
f(x)=x-1/x^2-6
√-3√-27+√3
____
√4-3+7=12
f(x)=x-1/x^2-6
√-3√-27+√3
____
√4-3+7=12
-
You need to put the directions
For the first one I will speculate that you mean
..........x-1
f(x)=▬▬▬
.........x²-6
and that the directions are
Find the domain.
The domain of this is all reals
.................._
except x=±√6
The second one looks like a simplify
√-3√-27+√3
equals
√81 +√3 = 9+√3
The third does not make sense
____
√4-3+7=12
is a false equation because it simplifies to
1+7=12
Did you make a typo on #3
If any of the others are interpreted wrongly
Post the directions.
For the first one I will speculate that you mean
..........x-1
f(x)=▬▬▬
.........x²-6
and that the directions are
Find the domain.
The domain of this is all reals
.................._
except x=±√6
The second one looks like a simplify
√-3√-27+√3
equals
√81 +√3 = 9+√3
The third does not make sense
____
√4-3+7=12
is a false equation because it simplifies to
1+7=12
Did you make a typo on #3
If any of the others are interpreted wrongly
Post the directions.