which of the equation is also an identify ? equation A:a square+6a+7=16 , B:a square +2ab+b square=(a+b)square C:a square- b square = (a+b)(a- b) a. options is a. only equation B b. only equation C c. only equatikn B&C d. equation A,B&C
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d. equation A,B&C
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