помогите найти x0 и y0,ПЛИЗ X^2+2X-1 СРОЧНО!!!!!!!!!!!!!!!!!!!
y=x^2+2x-1,
a=1, b=2, c=-1,
x0=-b/(2a)=-2/(2*1)=-1,
y0=y(x0)=(-1)^2+2(-1)-1=-2.
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y=x^2+2x-1,
a=1, b=2, c=-1,
x0=-b/(2a)=-2/(2*1)=-1,
y0=y(x0)=(-1)^2+2(-1)-1=-2.