for e.g.
(x+1)^2 = x^2
can we take sqrt both sides and safely say x+1 = x? doesn't sound right to me.
(x+1)^2 = x^2
can we take sqrt both sides and safely say x+1 = x? doesn't sound right to me.
When you have to take square root, always consider both positive and negative factors in consideration
Whereas when you are given a square root you can assume it to be positive only...
