Ответ:
D=b^2-4ac
D=49-48=1>0
x1= -b+D/2a
x2= -b-D/2a
x1= -7+1/2*2= -1,5
x2= -7-1/2*2= -2
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Ответ:
D=b^2-4ac
D=49-48=1>0
x1= -b+D/2a
x2= -b-D/2a
x1= -7+1/2*2= -1,5
x2= -7-1/2*2= -2