23 over 21 is the right answer
23
----
21
For this case we have the following functions:

We must find the product of the functions:

We apply distributive property:

Finally, the product of the functions is:

Answer:

Answer:
i cant see
Step-by-step explanation:
Literal equation:
we know that
literal equation is equation of more one variable
for example: 
And we can solve such equations only if we are given two such equation
because it has two variables
One variable equation:
such equation has single variables
for example:

we don't need any other equation
we can solve for variables from single equation itself
because it has only one variable that is x