Step by step
The question
Question: solve x² = 0.
x2 = 0
1 Square root of both sides
x squared is 0.
Only 0 times 0 is 0.
0 × 0 = 0
So x = 0.
There is just one answer.
x = 0
2 Check
Let's check: put x = 0 into the left side.
x = 0: 02 = 0
We get 0, the same as the right side.
It works!
Let's look back.
First: square root of both sides.
Last: check.
Answer
x = 0