3x^2-6x+3=3*(x^2-2x+1)=3*(x-1)^2=3*(x-1)*(x-1). Ответ: 3*(x-1)*(x-1).
x²-2x-3=0
D=(-2)^2-4*1*(-3)=4+12=16=4^2
x1=2+4/2=3
x2=2-4/2=-1
Ответ:-1;3
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3x^2-6x+3=3*(x^2-2x+1)=3*(x-1)^2=3*(x-1)*(x-1). Ответ: 3*(x-1)*(x-1).
x²-2x-3=0
D=(-2)^2-4*1*(-3)=4+12=16=4^2
x1=2+4/2=3
x2=2-4/2=-1
Ответ:-1;3