Help with the question above

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?

Rewrite the equation x = 65 - 60p by factoring the side that contains the variable p.

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4