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@anastasyaanastНастя
July 2022
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Juliaa21
1) -2(x + 3) - 5 = 6x
-2x - 6 - 5 = 6x
8x = -11
x = -1 3/8
x = -1,375
2) 12 - 4(2x - 1) = 5(x + 2)
12 - 8x + 4 = 5x + 10
13x = 6
x = 6/13
3) x² = x
x² - x = 0
x(x - 1) = 0
x₁ = 0
x₂ = 1
4) 2x² = 8
x² = 4
x₁ = 2
x₂ = -2
5) (2x + 1)² = 0
2x + 1 = 0
x = -1/2
x = -0,5
0 votes
Thanks 0
Regent1828
Verified answer
3)x²=x
x²-x=0
x(x-1)=0
x=0 или x-1=0
x=1
Ответ: 0;1
4)2x²=8|:2
x²=4
x=+-2
Ответ:-2;2
5)(2x+1)²=0
2x+1=0
2x=-1 |:2
x=-1/2=-0.5
Ответ:-0,5
1)-2(x+3)-5=6x
-2x-6-5=6x
-2x-6x=5+6
-8x=11 |:(-8)
x=-11/8=-1 3/8=-1.375
Ответ: -1,375
2)12-4(2x-1)=5(x+2)
12-8x+4=5x+10
-8x-5x=10-4-12
-13x=-6|:(-13)
x=6/13
Ответ:6/13
0 votes
Thanks 0
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Answers & Comments
-2x - 6 - 5 = 6x
8x = -11
x = -1 3/8
x = -1,375
2) 12 - 4(2x - 1) = 5(x + 2)
12 - 8x + 4 = 5x + 10
13x = 6
x = 6/13
3) x² = x
x² - x = 0
x(x - 1) = 0
x₁ = 0
x₂ = 1
4) 2x² = 8
x² = 4
x₁ = 2
x₂ = -2
5) (2x + 1)² = 0
2x + 1 = 0
x = -1/2
x = -0,5
Verified answer
3)x²=xx²-x=0
x(x-1)=0
x=0 или x-1=0
x=1
Ответ: 0;1
4)2x²=8|:2
x²=4
x=+-2
Ответ:-2;2
5)(2x+1)²=0
2x+1=0
2x=-1 |:2
x=-1/2=-0.5
Ответ:-0,5
1)-2(x+3)-5=6x
-2x-6-5=6x
-2x-6x=5+6
-8x=11 |:(-8)
x=-11/8=-1 3/8=-1.375
Ответ: -1,375
2)12-4(2x-1)=5(x+2)
12-8x+4=5x+10
-8x-5x=10-4-12
-13x=-6|:(-13)
x=6/13
Ответ:6/13