Why can x^2-4=0 have multiple solutions? Isn't the answer just x=2?

Oct 21, 2015

The answer is directly related to the power of the variable.

Explanation:

The answer is directly related to the power of the variable.

if ${x}^{2} = 4$
then,

$x$ will have 2 values.

First $x = + 2$
Second $x = - 2$

Similarly,

if $x$ has a power of 3

It'll have 3 values and so on.