Question

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

Answer 1

Can you give me an example please?

Answer 2

For example, x = 2 has only one solution and that is x = 2.
but
x2 = 4, the squared equation, has two solutions: x = +2 and x = -2

Answer 3

If an equation is true and each side of the equation is squared or multiplied or divided by the same nonzero number, the resulting equation is equivalent to the original

Answer 4

Thank you both!

Answer 5

Anytime