Question

Find the solution set (x+1)(x+1)=0

Answer 1

(x+1)(x+1)
x²+2x+1=0
x²+1x+1x+1=0
x(x+1)+1(x+1)
(x+1)(x+1)
x=-1

Answer 2

x= -1 beacuse negative one plus one is 0 and that will equal zero for both sides