Ответ:
(2x+1) (4-x) =0
2x+1=0 або 4-х =0
2х = -1 х= -4
х = -½ або -0.5
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Ответ:
(2x+1) (4-x) =0
2x+1=0 або 4-х =0
2х = -1 х= -4
х = -½ або -0.5