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никита12лет
@никита12лет
July 2022
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х²-(9-х)² <-2х
х²<(25-х)²+25х
Решите пожалуйста!
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mikael2
Х²-(9-х)² <-2х x²-(81-18x+x²) <-2х
x
²-81+18x-x²+2x<0
20x<81 x<4.05
х²<(25-х)²+25х x
²<625-50x+x²+25x
625-25x>0 25x<625 x<25
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Answers & Comments
20x<81 x<4.05
х²<(25-х)²+25х x²<625-50x+x²+25x
625-25x>0 25x<625 x<25