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erik [133]
3 years ago
15

3z2 - 2z + 8 - (10z2 +7z - 12)

Mathematics
1 answer:
klemol [59]3 years ago
4 0

Answer: 7z²-9z+20

Step-by-step explanation:

PEMDAS - Please Excuse My Dear Aunt Sally - Parentheses, Exponents, Multiplication, Division, Addition, Subtraction

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