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MIVKA
@MIVKA
August 2022
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Решить уравнение:
1)4x^2-2x=0
2)3x-2x^2=0
3)-5x^2+75=0
4)0,2x-5x^2=0
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Answers & Comments
snow99
1) 4x^2-2x=0
2x(2x-1)=0
2x=0 или 2x-1=0
x=0 2x=1
x=0,5
2) 3x-2x^2=0
x(3-2x)=0
x=0 или 3-2x=0
-2x=-3
x=1,5
3) -5x^2+75=0
-5x^2=-75
x^2=15
x= √15 или x= -√15
4) 0,2x-5x^2=0
0,2x(1-25x)=0
0,2x=0 или 1-25x=0
x=0 -25x=-1
x=0,04
6 votes
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Answers & Comments
2x(2x-1)=0
2x=0 или 2x-1=0
x=0 2x=1
x=0,5
2) 3x-2x^2=0
x(3-2x)=0
x=0 или 3-2x=0
-2x=-3
x=1,5
3) -5x^2+75=0
-5x^2=-75
x^2=15
x= √15 или x= -√15
4) 0,2x-5x^2=0
0,2x(1-25x)=0
0,2x=0 или 1-25x=0
x=0 -25x=-1
x=0,04