Answer:

Step-by-step explanation:
÷ 
↓ ↓ ↓
leave it change it turn it over
× 
now solve it
×
= 
now simplify it
= 
Answer:
x/x=1
Step-by-step explanation:
when divide any two things which are equal then the answer is 1!!!
Answer:
Current
Step-by-step explanation:
Answer:
it is store b
Step-by-step explanation:
because you answered your own question
Answer:
See below.
Step-by-step explanation:
Values are excluded if they make the denominator zero, so one rational expression could be:
(x^2 - 9) / (x + 4)(x + 7)
- when x = -4 or -7 then the denominator is zero so the values of the function is undefined for these values.