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lizakiska1999
@lizakiska1999
July 2022
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(х+3)в квадрате+(х-7)в квадрате=2хв квадрате
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8Стася8
(х+3)²+(х-7)²=2х²
х²+6х+9+х²-14х+49=2х²
х²+х²-2х²+6х-14х+9+49=0
-8х+58=0
-8х=-58
х=-58:-8
х=7,25.
Ответ: х=7,25.
3 votes
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Answers & Comments
х²+6х+9+х²-14х+49=2х²
х²+х²-2х²+6х-14х+9+49=0
-8х+58=0
-8х=-58
х=-58:-8
х=7,25.
Ответ: х=7,25.