Answer:

Step-by-step explanation:
Let f and g be two functions that are defined in the same interval and have the same independent variable. Then, the Subtraction of Function is defined as:

Let's solve (f-g)(x) with
and 

.
20 and -3 equals 17 and 20 times -3 equals -60
Answer:
x=0,1,-1
Step-by-step explanation:
It factors as
X(x+1)(x-1)=0
18 tens= 180
20 ones= 20
180+20= 200
200