How do you know when the function is in simplified form?

That is known when there is no like terms to be added, and for the case of a fractional function: there is no more common factors between the numerator and the denominator.

Hope that help

Your cleary not see the answer is 25

Hello!

the answer is:

the answer is:

why?

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!