X/3 x 1? help me please

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

Name the quadrilaterals that have four equal sides.

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?