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Леночка2811
@Леночка2811
July 2021
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Помогите Решить пожалуйста уравнение
(4х+3)^2-(3х-1)^2
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Анатоле
(4x+3)^2 -(3x-1)^2 = 16x^2 + 24x + 9 - 9x^2 + 6x -1 = 0
7x^2 + 30x + 8 = 0
D = 900 - 224 = 676
x1 = (-30+26)/14 = -4/14
x2 = (-30-26)/14 = -4
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DaysyJ
16x^2+24x+9-9x^2+6x-1
7x^2+30x+8
D=900-224=676
X1=(-30-26)/14=-4
X2=(-30+26)/14=-2/7
0 votes
Thanks 0
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Answers & Comments
7x^2 + 30x + 8 = 0
D = 900 - 224 = 676
x1 = (-30+26)/14 = -4/14
x2 = (-30-26)/14 = -4
7x^2+30x+8
D=900-224=676
X1=(-30-26)/14=-4
X2=(-30+26)/14=-2/7