Question

FACTORIZE USING THE FORMULA
$a2 - b2 = (a + b)(a - b)$
PLS HELP​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

$( {x}^{2} + {y}^{2} - {z}^{2}) ^{2} - (2xy)^{2} \\ = ( {x}^{2} + {y}^{2} - {z}^{2} - 2xy)( {x}^{2} + {y}^{2} - {z}^{2} + 2xy) \\ ={{(x - y)^{2} - ({z}^{2} )}}{(x + y)^{2} - ({z}^{2}) } \\ = (x - y - z)(x - y + z)(x + y + z)(x + y - z)$

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