Compare the two equations below.

1. ​How are the equations similar? How are they different?

   Hint (a):

   $(x+\enclose{circle}{\:2)(x\:}-1)=0$ and $(x+\enclose{circle}{\ 2)+(x\ }-1)=0$

   Answer (a):

   They are similar in that both are expressions equal to $0$.
   They are different in that the first equation is a product while the second is a sum.

2. Solve both equations.

   Hint 1(b):

   For the first equation, set each factor equal to zero and solve.

   Hint 2(b):

   For the second equation, start by combining like terms.