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Чудаа
@Чудаа
July 2022
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Задание 801 срочно!!!!!!
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ВладимирБ
Verified answer
Решение смотри на фото
0 votes
Thanks 1
sedinalana
Verified answer
801
x=(2x+25)/(x+2)
x≠-2
x(x+2)=2x+25
x²+2x-2x=25
x²=25
x=-5
x=5
Ответ x=-5
802
-x=(7x+20)/(x+2)
x≠-2
-x(x+2)=7x+20
-x²-2x-7x-20=0
x²+9x+20=0
x1+x2=-9 U x1*x2=20
x1=-5 U x2=-4
Ответ х=-5
0 votes
Thanks 0
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Answers & Comments
Verified answer
Решение смотри на фотоVerified answer
801x=(2x+25)/(x+2)
x≠-2
x(x+2)=2x+25
x²+2x-2x=25
x²=25
x=-5
x=5
Ответ x=-5
802
-x=(7x+20)/(x+2)
x≠-2
-x(x+2)=7x+20
-x²-2x-7x-20=0
x²+9x+20=0
x1+x2=-9 U x1*x2=20
x1=-5 U x2=-4
Ответ х=-5