Need Help Please Easy

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?

Identify the number as a rational or irrational. explain. 127

What is the location of point g, which partitions the directed line segment from d to f into a 5: 4 ratio? –1 0 2 3