What is the length of XY ? Please answer correctly

Which is the completely factored from of xy^3-x^3y

Write a story that matches with the expression 42x-5 pls hurry

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?