
PEMDAS states to do what's in the parenthesis first...

PEMDAS states to multiply 5 by 1 next...

PEMDAS states to subtract 4 by 5 next...

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I hope that helps you out!!
Any more questions, please feel free to ask me and I will gladly help you out!!
~Zoey
I am not sure I am right but I think it depends on the size of the X.
Demoss graphing calculator
Answer:
7
Step-by-step explanation:
3^2 = 9
(-4)^2 = 16
16-9= 7