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Maria21212
@Maria21212
June 2022
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Прошу, решите квадратное уравнение!!!!! Очень срочноо (3x+1)²=(x+2)²
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Asya2207
(3x+1)^2=(x+2)^2
9x^2+6x+1=x^2+4x+4
8x^2+2x-3=0
D=100
КореньD=10
x1=0.5
x2=-3/4
0 votes
Thanks 1
evstifeeva07
9х²+6х+1=х²+4х+4
9х²-х²+6х-4х+1-4=0
8х²+2х-3=0
D=2² -4*8*(-3) = 4+96=100
х₁ = (-2+√100)2*8=-2+10/16 =8/16=0,5
х₂ = -2-10/16=-12/16=-0,75
0 votes
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Answers & Comments
9x^2+6x+1=x^2+4x+4
8x^2+2x-3=0
D=100
КореньD=10
x1=0.5
x2=-3/4
9х²-х²+6х-4х+1-4=0
8х²+2х-3=0
D=2² -4*8*(-3) = 4+96=100
х₁ = (-2+√100)2*8=-2+10/16 =8/16=0,5
х₂ = -2-10/16=-12/16=-0,75