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travismarshall01
@travismarshall01
July 2022
2
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Уравнение.
(X-2)^2=(X-9)^2
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vladgushchin9
(х-2)^2=(х-9)^2
(х-2)^2-(х-9)^2=0 (формула разности квадратов)
(х-2-х+9)(х-2+х-9)=0
7(2х-11)=0
2х-11=0
2х=11
х=11:2
х=5,5
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гюйс
Verified answer
(х-2)²=(х-9)²
х²+4-4х=х²+81-18х
х²+-4х-х²+18х=81-4
14х=77
х=
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гюйс
хотя тут что-то не то, где-то ошибка. Даже не решая - х-2 и х-9 никак не быть равны.
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Answers & Comments
(х-2)^2-(х-9)^2=0 (формула разности квадратов)
(х-2-х+9)(х-2+х-9)=0
7(2х-11)=0
2х-11=0
2х=11
х=11:2
х=5,5
Verified answer
(х-2)²=(х-9)²х²+4-4х=х²+81-18х
х²+-4х-х²+18х=81-4
14х=77
х=