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IUNA050
@IUNA050
August 2022
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3
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Решите уравнение
x в 3 степени
-4x во 2 степени
-7x
+28
=0
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Ртуть3
Verified answer
X^3-4x^2-7x+28=0
x^2(x-4)-7(x-4)=0
(x^2-7)(x-4)=0
x^2-7=0 или x-4=0
x=√7 x=4
x=-√7
Ответ:
x=√7
x=-√7
x=4
1 votes
Thanks 2
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Answers & Comments
Verified answer
X^3-4x^2-7x+28=0x^2(x-4)-7(x-4)=0
(x^2-7)(x-4)=0
x^2-7=0 или x-4=0
x=√7 x=4
x=-√7
Ответ:x=√7
x=-√7
x=4