Answer: =-23
Step-by-step explanation:
This question it's about PEMDAS. p-parenthesis, e-exponents, m-multiply, d-divide, a-add, and s-subtract. It can also go left to right.
calculate exponents
3²=3*3=9
4-12/4*9
multiply and divide left to right
12/4=3
3*9=27
subtract left to right.
4-27
=-23
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