15/(x-2)-15/(x+2)=1
(30+30)/(x-2)(x+2)=1
60/(x-2)(x+2)=1
(x-2)(x+2)*60/(x-2)(x+2)=(x-2)(x+2)*1
60=(x-2)(x+2)
60=x²-4
-x²=-64
x²=64
x=8;-8
Проверка:
15/6-15/10=75/30-45/30=30/30=1
15/-10-15/-6=-15/10+15/6=-45/30+75/30=30/30=1
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Answers & Comments
15/(x-2)-15/(x+2)=1
(30+30)/(x-2)(x+2)=1
60/(x-2)(x+2)=1
(x-2)(x+2)*60/(x-2)(x+2)=(x-2)(x+2)*1
60=(x-2)(x+2)
60=x²-4
-x²=-64
x²=64
x=8;-8
Проверка:
15/6-15/10=75/30-45/30=30/30=1
15/-10-15/-6=-15/10+15/6=-45/30+75/30=30/30=1