3 years ago

? Question

Mathematics

1 answer:

quester [9]3 years ago

3 0

Answer:

Step-by-step explanation:

<u>Given expression:</u>

(-2 + 1)2 + 5(12 : 3) – 9

<u>It is assumed that it is multiplication sign before/after parenthesis:</u>

(-2 + 1)×2 + 5×(12 : 3) – 9 = 1. Parenthesis
(-1)×2 + 5×4 - 9 = 2. Multiplication
-2 + 20 - 9 = 3. Addition
18 - 9 = 4. Subtraction
9 5. Final result

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