Fast please!

Q5. ABC is a isosceles $\u2206$ with AB = BC. Drawn AP$\perp $ BC, so that $\angle $B = $\angle $C.

Q6. If a student goes to school by car if the distance of his school can be obtained by the reminder when $\frac{{x}^{4}+{x}^{3}-2{x}^{2}+x+1}{x-1}$ find the distance of the school.

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