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Krokodill05
@Krokodill05
August 2022
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12-(4-x)²=x(3-x)
15 баллоов
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koingrel
Verified answer
12-(4-x)²=x(3-x)
12 - (4-x)(4-x) =3x -
x²
12 - 16 + 8x -
x² = 3x - x²
-4 + 8x = 3x
-4 = -5x
x = 0,8
2 votes
Thanks 2
Arakelan95
Там -5х должен стоять левом. иксы не ставятся в правой части
Arakelan95
12-(4-x)^2=x(3-x)
12-(16-8x+x^2)=3x-x^2
12-16+8x-x^2=3x-x^2
-4+8x-x^2=3x-x^2
-4+x(8-x)=x(3-x)
8x-x^2-3x+x^2=4
5x=4
X=4/5
1 votes
Thanks 1
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Answers & Comments
Verified answer
12-(4-x)²=x(3-x)12 - (4-x)(4-x) =3x - x²
12 - 16 + 8x - x² = 3x - x²
-4 + 8x = 3x
-4 = -5x
x = 0,8
12-(16-8x+x^2)=3x-x^2
12-16+8x-x^2=3x-x^2
-4+8x-x^2=3x-x^2
-4+x(8-x)=x(3-x)
8x-x^2-3x+x^2=4
5x=4
X=4/5