[질문] 16M제곱-12(1+M)재곱=0풀면 16M재곱-12-12M제곱=0맞아요?

16M제곱-12(1+M)제곱=0 => 16M^2-12(1+2M+M제곱)=0 => 16M제곱-12-24M-12M제곱=0 => 4M제곱-24M-12=0 입니다.