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апельсинка157
@апельсинка157
August 2022
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Решите уравнение √x^2+6x+9(всё корень)=2
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m11m
Verified answer
√(x²+6x+9)=2
√(x+3)² =2
|x+3|=2
При x+3≥0
x≥ -3
x+3=2
x= -1
При x+3<0
x< -3
x+3= -2
x= -5
Ответ: -5; -1.
2 votes
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Answers & Comments
Verified answer
√(x²+6x+9)=2√(x+3)² =2
|x+3|=2
При x+3≥0
x≥ -3
x+3=2
x= -1
При x+3<0
x< -3
x+3= -2
x= -5
Ответ: -5; -1.