Question

x cube- 2 x square plus X + 1​

Answer 1

2

x cube- 2 x square plus X + 1=0

x square(x-2)+1(x+1)=0

(x square+1)(x-2)(x+1)=0

x square +1=0 x-2=0. x-1=0

x square = (-1) x=2 x=(-1)

negative is not possible

so answer is 2

Answer 2

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