Question

simplify: (x^2+y^2-z^2)^2-(x^2-y^2+z^2)^2​

Answer 1

I don't know bro u write it clearly

Answer 2

Apply the formula  a2−b2=(a+b)(a−b)  to simplify the expression.

(x2+y2−z2)2−(x2−y2+z2)2

=(x2+y2−z2+x2−y2+z2){x2+y2−z2−(x2−y2+z2)}

=(2x2)(x2+y2−z2−x2+y2−z2)

=(2x2)(2y2−2z2)

=(4x2)(y2−z2)

=4x