Hello community if you could help me with this I would appreciate it

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?

What is the factored form of the following expressions? d^2 – 13d + 36

How do you write something in scientific notation?