Line ab and cd are parallel. Find the measures of the three angles in triangle abf, labeled angles 1 2 and 3 C’s measurement is 42 degrees

D’s measurement is 157 degrees

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?