Question

Help me please I will UPVOT

When you square each side of an equation, is the resulting equation equivalent to the original?

Answer 1

Yes, that is true.

If x = y, x² = y².
If x = y, substitute x into where y is;

x² = y²
x² = (x)²
Thus, yes they will be.

Answer 2

When you square each side of an equation then the resulting equation is not equivalent to the original