Ответ будет 5-ое...)))))))))))))
Ответ:
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1-x/3=2x+6/3=1-x=2x-6=-x-2x=-3x=5=-5/3
( x + 3 )^2 = 2х + 6
х^2 + 6х + 9 = 2х + 6?
х^2 + 4х + 3 = 0
D = 16 - 12 = 4 ; V D = 2
X1 = ( - 4 + 2 ) : 2 = - 1
X2 = ( - 4 - 2 ) : 2 = - 3
Ответ при х = - 1 ; - 3
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