The expression is given by:

So we need to find an equivalent equation for this problem. Then, we will apply some mathematical rules:
Extracting the common factor 1/4, then:

Or extracting the common factor -1/4, then:

So, comparing these solutions with the answers about, there is no any answer that matches.
Answer:
Step-by-step explanation:
-2^2 is -4
-18^2 is -324
This is the correct answer for the system of equations
Answer:
x = 183°
Step-by-step explanation: