factorize using identities.
iv) x² - y² - 4xz + 4z²

Dear Student,

Refer the first solution of the following link:
https://www.meritnation.com/ask-answer/question/factorize1-x2-y2-4xz-4z22-343p3-64q3-125p3q6-42/polynomials/2916685

Hope this would have clear your doubt. Do let us know in case of any further concerns.
   

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