#215 Высислите:Пж ПоМоГиТе !

Question

#215 Высислите:
Пж ПоМоГиТе !

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Answer 1

2.1^2-2.1=2.31
0.9-0.9^2=-0.09
2×0.8^2=1.28
(2×0.8)^2=3.2
2.5^2-0.5^2=6
(2.5-0.5)^2=2