The second power of M + m-2 = 0 to find the value of M + 2000 There are two answers

The second power of M + m-2 = 0 to find the value of M + 2000 There are two answers

M^2+M-2=0
(M+2)(M-1)=0
M1=1
M2=-2
M1+2000=2001
M2+2000=1998
So the two answers are 2001 and 1998