Question

calcule o valor das expressões:
B) 10+(-2)3-4
C) 12-1+(-4)2
D) (-1)5 +3-9
E)18-(+7)+3 2




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Answer 1

B)10+(-2)3-4

= 10 + −6 − 4

=4 − 4

= 0

C)12-1+(-4)2

= 11 + (−4)(2)

= 11 + −8

= 3

D)(-1)5 + 3 - 9

= −5 + 3 − 9

= −2 −9

= −11

E)18 - (+7) + 3 2

= 11 + (3)(2)

= 11 + 6

= 17