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skelet666 [1.2K]
3 years ago
7

I need help with these two equations and to explain how to do it

Mathematics
1 answer:
jekas [21]3 years ago
8 0

Answer:

27)  (7 + 9) · 3 / 6 = 48/6 = 8

28) (-7)² - 3(-7)(4) = 49 - (-84) = 133

Step-by-step explanation:

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