I have a math problem I need help withhh I’ll give brainliest

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?

Aright cylinder has a diameter of 8 m and a height of 6m. what is the volume of the cylinder

Solve the equation for b: a= (1/2)(b)(h)