Which polynomial represents the difference below 5x^2+9x+3-(x^2-3x)?
1 answer:
You might be interested in
Answer:
f-1(x)=-x-
Step-by-step explanation:
First, switch f(x) to the variable "y".
y=-x-8
Next, swap "x" and "y" with each other.
x=-y-8
Next, lets move the denominator of 2 to the other side by multiplying both sides by 2. Your result will be...
2x=-3y-16
Now move -16 to the left side.
16+2x=-3y
To get "y" by itself, lets divide each side by -3. Our result is...
y=-x-
To finish the problem off, replace y with f-1(x) and your complete answer will be...
f-1(x)=-x-