-193
Объяснение:
(x-5)/(x+19) + (x-19)/(x+5)= 0
(x-5)(x+5)+(x+19)(x-19)=0
x²-25+x²-361= 0
2x²-386=0
x²-193=0
√193*(-√193)= -193
-193
Объяснение:
(x-5)/(x+19) + (x-19)/(x+5)= 0
(x-5)(x+5)+(x+19)(x-19)=0
x²-25+x²-361= 0
2x²-386=0
x²-193=0
√193*(-√193)= -193