April 2021 1 3 Report
8. ¿Cuál de las siguientes expresiones es equivalente a la diferencia 4a2 - b2?
a) (2a - b) · (2a - b)
b) (2a + b) · (2a -b)
c) (4a + b) · (4a + b)
d) (4a - b). (4a - b)

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