Question

use a suitable identify to get each of the following products;
full solution send​ kro​

Answer 1

Answer:

answer in attachment

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Answer 2

Solution -

$= ( - x + y)( - x + y)$

$By \: applying \: the \: formula \: (a + b) ^{2} = {a }^{2} + {b}^{2} + 2ab$ we will get-

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

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

$= {x}^{2} + {y}^{2} - 2xy$