Ответ:
y₁=-9, y₂=5
Пошаговое объяснение:
(y+2)*(y+2)=49
(y+2)²=7²
y+2=±7
y=-2±7
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Ответ:
y₁=-9, y₂=5
Пошаговое объяснение:
(y+2)*(y+2)=49
(y+2)²=7²
y+2=±7
y=-2±7