8x^2+bx+6=0a=8bc=6D=b^2-4*8*6=b^2-144b^2=144b=12Ответ: В) 12
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8x^2+bx+6=0
a=8
b
c=6
D=b^2-4*8*6=b^2-144
b^2=144
b=12
Ответ: В) 12