What is the difference in high between 30 mm of a cliff and 87 mm up a cliff

The first hexagon is dilated to form the second hexagon select the answers from the drop box menus to correctly complete the statement

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?

Ineed to know the answer to this algebra question.