Пожалуйста, решите уравнения:
(x+1)(x+2) - (x+3)(x+4)=0
(5x-1)(2-x) = (x-3)(2-5x)
(x+1)(x+2) - (x+3)(x+4)=0
(5x-1)(2-x) = (x-3)(2-5x)
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Answers & Comments
3x+2-7x-12=0
-4x=10
X=-2,5
2) 10x-5x^2-2+X=2x-5x^2-6+15x
-5x^2+11x-2+5x^2-17x+6=0
-6x+4=0
6x=4
X=4/6=2/3