Question

calcule o valor das expressoes a) 5-{+3-[(+2)²-(-5)²+6-4]}= b)15-{-3+[(5-6)².9(9-8)²+1]}= C)18-{6-[-3-(5-4)-(7-9)³]-1}= d)-2+{-5-[-2-(-2)³-3-(3-2)elevado a 9]+5}= e) 4-{(-2)².(-3)-[-11+(-3).(-4)]-(-1)}=

Answer 1

a) -17         
b) 8
c) 17
d) -4
e) 16