Question

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$(x - y) {}^{2} - 9$
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Answer 1

Answer:

(x - y)² - 9

(x - y)² - (3)²

(x - y + 3)(x - y - 3). { using the identity of (a² - b²)=(a+b)(a - b).Here a = (x - y) and b = 3}

Hopes it helps!!!!!!

Answer 2

Step-by-step explanation:

(x - y)2 -9

(x - y)2-( 3)2

(x - y +3)× - y - 3

using the identity of a2 -b2

=(a + b) (a - b )

here a =( x - y )

b =(3)