Question 373105
<pre>
      (a + b)² = a² + b²

(a + b)(a + b) = a² + b²
 
 a² + 2ab + b² = a² + b²

           2ab = 0

            ab = 0

Either a = 0 or b = 0

So the answer is:  Yes, as long as one of them is zero
or both of them are zero.

Edwin</pre>