The identity used in simplifying 103 x 97
The identity used in simplifying 103 x 97
A) (a + b)2 = a2 + 2ab + b2
B) (a – b)2 = a2 – 2ab + b2
C) (a – b) (a + b) = a2 – b2
D) (x + a) (x + b) = x2 + (a + b) x + ab
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