It equals 0. * * * * * Unless the question is (-x)2 + (+x)2. In that case, the answer is 2x2
... and what is the question?
x² + x² = 2x²
x = +11 or -11
It is a polynomial expression in x. What about it?
Try -1. x=1, x=-6
If: y2+x2 = 52 Then: x2 = 52-y2 Their values could be: x = 3 and y = 4
There are an infinite number of different quantities to which it could be equal, depending on what the value of 'X' happens to be at the moment.
X to the 2nd power is simply X squared, or X times X.
10 ( x = -3)
999 and 1