Question

ello

factorie
$(x + y) ^{2} - (x - y) ^{2}$
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Answer 1

Ello!♦

(x+y)² - (x-y)²

=> x² + y² + 2xy - [x² + y² - 2xy]

=> x² + y² + 2xy - x² - y² + 2xy

=> 4xy

Answer 2

Answer:

identity no. 3

Step-by-step explanation:

${x}^{2} - {y}^{2}$

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