Question

find the zeroes of the polynomial
$p(x) = (x - 2) {}^{2} - (x + 2) {}^{2}$

Answer 1

Here is the solution.

Answer 2

(x-2)²-(x+2)²
x²+2²-2*x*2-x²+2²+2*x*2
x²+4-4x-x²+4+4x
=8