Jan's pencil is 8.5 cm long ted's pencil is longer which could be the length of ted's pencil

Ineed to learn how to solve this problem

Estimate the distance between orlando and jacksonville

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)-144x+360 what am i doing wrong?