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efectuati 980+10x{20+5x[90-4x21]}-10 la puterea 3



va rog


rezolvare


Răspuns :

= 980+10*{20+5*[90-84]}-1000 =
=980+10*{20+5*6}-1000=
=980 + 10 * {20+30}-1000=
=980+10*50-1000=
=980+500-1000=
=1480-1000=480
980+10•{20+5[90-4•21]}-1000=...
Vezi imaginea SERAMARIAORSOLY1