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michail228
@michail228
August 2022
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89 под 1) пожалуйста Dariosl на листочке
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DariosI
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89.
ОДЗ
х-2=0
х=2
х-3=0
х=3
2x²-10x+13=2.5(x²-5x+6)
2x²-10x+13=2.5x²-5*2.5x+2.5*6
2x²-10x+13=2.5x²-12.5x+15
0.5x²-2.5x+2=0 :0.5
x²-5x+4=0
D=25-16=9
x=(5-3)/2=1
x=(5+3)/2=4
Ответ 1; 4
4 votes
Thanks 3
michail228
ты можешь все решить??
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Answers & Comments
Verified answer
89.ОДЗ
х-2=0
х=2
х-3=0
х=3
2x²-10x+13=2.5(x²-5x+6)
2x²-10x+13=2.5x²-5*2.5x+2.5*6
2x²-10x+13=2.5x²-12.5x+15
0.5x²-2.5x+2=0 :0.5
x²-5x+4=0
D=25-16=9
x=(5-3)/2=1
x=(5+3)/2=4
Ответ 1; 4