ok
so
(4) then (Ab/c) then (x2) and (=)
if you have the instructions of how to use your calculator, better
the problem is that i´m not able to use a graphic calculator because in the access test to university you are not allowed but thanks anyway this question has served to improve my english skills :)

Respuestas

2014-02-05T20:07:24+01:00
Usa la calculadora, es obvio. Primero aprietas el 4 despues un boton que pone "Ab/c" y despues aprietas x2