Question

x – y)(x + y) + (y – z)(y + z) + (z – x) (z + x) is equal to

Can anyone say the answer of this question

Answer 1

$\mathfrak{ \large{ \boxed{✿Answer \: is \: 0}}}$

$\sf{ \purple{Formula \: used :-}}$

$\mathcal{ \blue{ \boxed{ \boxed{(a - b)(a + b) = a {}^{2} - b {}^{2} }}}}$

$\sf{(x – y)(x + y) + (y – z)(y + z) + (z – x) (z + x)}$

$\sf{ = > x {}^{2} - {y}^{2} + {y}^{2} - z {}^{2} + {z}^{2} - x {}^{2}}$

$\sf{ = > 0}$

$\mathfrak{ \green{✤Hope \: this \: helps! }}$