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Кристина13411
@Кристина13411
August 2022
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Решите уравнение
x^2+8x+7=0 ( x^2- x во второй степени)
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adeli006
Verified answer
D=8^2- 7*4= 64-28=36 =6^2
X1=(-8-6)/2=-7
X2=(-8+6)/2=-1
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Answers & Comments
Verified answer
D=8^2- 7*4= 64-28=36 =6^2X1=(-8-6)/2=-7
X2=(-8+6)/2=-1