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annapotapova
@annapotapova
July 2022
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Решите уравнение:
(х + 3)^2 – х = (х – 2)(2 + х)
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yadashko
X^2+6x+9-x=x^2-4
2+х и х+2 одно и то же
переносим
х^2+6x-x-x^2=-4+9
x^2 и -х^2 уничтожаются
5x=5
x=1
1 votes
Thanks 1
Dagestan001
X^2+6x+9-x=2x+x^2-4-2xX^2 и 2x зачеркиваем6x-x=9+45x=13x=2,6
1 votes
Thanks 1
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Answers & Comments
2+х и х+2 одно и то же
переносим
х^2+6x-x-x^2=-4+9
x^2 и -х^2 уничтожаются
5x=5
x=1