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in Factorization by (36.4k points)
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Factorize each of the following algebraic expressions:

x2 - y2 - 4xz + 4z2

1 Answer

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Best answer

x2 – 2 (x) (2z) + (2z)2 – y2

As (a-b)2 = a2 + b2 – 2ab

= (x – 2z)2 – y2

As a2 – b2 = (a+b)(a-b)

= (x – 2z + y) (x – 2z – y)

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