Ответ:
x^2-8x+15x=0
D=√8^2-4*1*15=√64-60=√4=2
x1=8+2/2=5
x2=8-2/2=3
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Ответ:
x^2-8x+15x=0
D=√8^2-4*1*15=√64-60=√4=2
x1=8+2/2=5
x2=8-2/2=3