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Odaa1
@Odaa1
August 2021
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Титинка
(х+4)^2-(x+1)(x-2)=2x-3
x^2+8x+16-(x^2-2x+x-2)=2x-3
x^2+8x+16-x^2+2x-x+2+2x-3
7x=-19
x=-19/7
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leranenasheva
не правильно, должно получиться 9,5
leranenasheva
неправильно*
leranenasheva
(+4)^2-(Х+1)(Х-2)=2х-3
Х^2+16-х^2-2х+Х+х=2х-3
-2х+Х+Х-2х=-3-16
-2х=-19
Х= -19:(-2)
Х=9,5
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leranenasheva
в первой строчке я написала (Х+4)^2
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Answers & Comments
x^2+8x+16-(x^2-2x+x-2)=2x-3
x^2+8x+16-x^2+2x-x+2+2x-3
7x=-19
x=-19/7
Х^2+16-х^2-2х+Х+х=2х-3
-2х+Х+Х-2х=-3-16
-2х=-19
Х= -19:(-2)
Х=9,5