рдирд▓/ - ix-1 1.x-qa R e TR | 1 xe1. L0y – InterviewSolution

1.

рдирд▓/ - ix-1 1.x-qa R e TR | 1 xe1. L0y

Answer»

(x-1)([(x+1)²+1]-1(x+1-1)+1(1-x-1))=0

(x-1)([x²+2x+1+1]-x+1(1+x+1))=0

(x-1)([x²+2x+2]-x+(2+x)=0

(x-1)(x²+2x+2-x+2+x)=0

(x-1)(x²+2x+4)=0

x=1,x= -2±√4-16/2x=-1±12i

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