Question

ma puteti ajuta?va rog frumos? urgeeent

Answer 1

14.

b)$9873-4\cdot{[21+3\cdot[5+(4+4\cdot8):9]]}=\\ \\9873-4\cdot{[21+3\cdot[5+(4+32):9]]}=\\ \\9873-4\cdot{[21+3\cdot[5+4]]}=\\ \\9873-4\cdot{[21+3\cdot9]}=9873-4\cdot[21+27)=9873-4\cdot48=9873-192=9681$

$510+[5\cdot[9600:30-15\cdot(54:9)]}=510+[5\cdot(320-15\cdot 6)]}=510+5\cdot230=118450$