Question

Create your own two-step equation with All Real Numbers as the solution. Show the steps to solving the equation to prove the solution All Real Numbers.

Answer 1

x^2+2x+1=0, is valid for all real x.
so factorising,
x^2 + x + x +1=0
x(x+1)+1(x+1)=0
(x+1)(x+1)=0
x+1=0
x=-1