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romanekonti
@romanekonti
July 2022
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(5х-7)^2=(5(х+1)^2
Срочно решите плиз
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chernavina2002
(5х-7)^2=(5(x+1)^2
5х^2-2*5x*(-7)+(-7)^2=5x^2-2*5x*5+5^2
-20x-7^2-5^2=0
-20x-74=0
-20x=74
x=74/-20
x= -3,7
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Smalerus
Лучше решать самому, но и так хорошо)
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Answers & Comments
5х^2-2*5x*(-7)+(-7)^2=5x^2-2*5x*5+5^2
-20x-7^2-5^2=0
-20x-74=0
-20x=74
x=74/-20
x= -3,7