A^2 + 48^2 = 50^2
a^2 = 2500 - 2304
a^2 = 196
a = 14
Answer:
C
Step-by-step explanation:
First, factor the original expression:

As we can see, D is the same as above. Eliminate D.
Go through each of the answer choices.
A:

This is equivalent to what we factored. Eliminate A.
B:

This is again equivalent to what we factored. Eliminate B.
C:

This cannot be simplified and it is not equivalent to what we have previously. C is not the equivalent expression.
D.2y square root x/square root y
Answer:
b
Step-by-step explanation: