I'm new to algebra and I'm having trouble solving this equation can someone answer with steps

Answer:
[tex]u(u + 1)[/tex]
Step-by-step explanation:
first and foremost you have positive and minus 1 which will cancel out to zero
then we're left with
[tex] {u}^{2} + u \\ factorize \: \: u \: out \: to \: get \\ u(u + 1)[/tex]