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Mathematics, 20.02.2020 20:56 lilakatedancer

Simplify (y + 9)(y - 9).
А у2
B у2 - 18
C y2 - 81
D у2 + 81

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You know the right answer?
Simplify (y + 9)(y - 9).
А у2
B у2 - 18
C y2 - 81
D у2 + 81...
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