Question

Factorize a² - b² - c² + 2bc

Answer 1

Answer:

=a² - (b² -2bc +c²)

=a² - (b-c)²

=(a-(b-c))(a+(b-c)) [ using identity a²-b² =(a-b). (a+b) ]

= (a-b+c)(a+b-c)

hence.,a²-b²+2bc - c² = (a-b+c)(a+b-c)

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Answer 2

Answer:

(a+b-c)(a-b+c); is the correct answer of the given question