Explicație pas cu pas:
a) 10•[-7+3(2+9:3)]
=10•[-7+3(2+3)]
=10•(-7+3•5)
=10•(-7+15)
=10•8
=80
b) 2•{-9+2•[-2^100:2^98+4•(-2+10:2)]+4}
=2•{-9+2•[-2^100-98+4•(-2+5)]+4}
=2•[-9+2•(-2^2+4•3)+4]
=2•[-9+2•(2+7)+4]
=2•(-9+2•9+4)
=2•(-9+17+4)
=2•(8+4)
=2•12
=24
