Решите уравнение:
5х-х^2+3=х(2-х)
х(4х+1)-7(х^2-2х)=3х(8-х)+6
6(х^2-4)-4х(х+3)=2х^2-12х-12
5х-х^2+3=х(2-х)
х(4х+1)-7(х^2-2х)=3х(8-х)+6
6(х^2-4)-4х(х+3)=2х^2-12х-12
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Answers & Comments
5x-x²+3=2x-x²
5x-2x-x²+x²=-3
3x=-3
x=-1
2) x(4x+1)-7(x²-2x)=3x(8-x)+6
4x²+x-7x²+14x=24x-3x²+6
4x²-7x²+3x²+x+14x-24x=6
-9x=6
x=-6/9=-2/3