Question

form the chapter
FACTORIZATION OF ALGEBRAIC EXPRESSIONS

factorize the following using identities.
$4 {z}^{2} - {x}^{2} + 4 xy - 4 {y}^{2}$
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Answer 1

hope this will be helpful to you

Answer 2

Answer:

4z²-x²+4xy-4y²

(2z)²+[-(x²)-(4*x*y)-(2y)²]

(a-b)²= a²-2ab+b²

(2z)² + [(-x)-y]²

a²-b²= (a+b)(a-b)

(2z+(-x)-y)(2z-(-x)-y)

(2z-x-y)(2z+z-y)