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2. -14*-4= +56
3. -4*-12= +48
4. -10*-4= +40
5. 4*-41= -164
6. -12*-4= +48
utiliza
Propiedades de signos
+*+=+
-*-= +
+*-=-
-*+=-
signos iguales se suman signos contrarios se restan