August 2018 1 47 Report
Al
simplificar la expresión: (7a - 3b) - a(2 - b) - 3a(b - 5) + b(2a - 1) se
obtiene

A)
4
(5a - b)


B)
5
(4a - b)


C)
-2
(5a + 2b + ab)


D)
-2
(5a + 2b)


E)
2
(10a - 2b - ab)
*con desarrollo porfavor

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