Which equation could be solved for the measure of angle O?

What term makes it inconsistent y=2x - 4 ?

Place the following steps in order to complete the square and solve the quadratic equation,

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! ❤