Zoom in more but me with this what do i need to ?

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Joanie watched 1 out of three of a movie in the morning