Let tan(2x) + tan(x) = 0, where 0 ≤ x < 2π. How many possible solutions are there for x? a. 2
b. 4
c. 6
d. 8

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! ❤