Question

A) (-6) + (+6)
________
(-2)²

B) (+3 +4 -2) elevado a 5

C) raiz quadrada de -5+14 . (-8 -2)

D) raiz quadrada de +36 : (+2) + (-5)² .(-4)

Answer 1

A)
(- 6) + (+6)    =  - 6 + 6          0
________        -----------   = -----  =   0
   (-2)²                    4              4

¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
B) (+3 +4 -2) elevado a 5

           5             5
(7 - 2)       =   5       =  5.5.5.5.5 = 3125

¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨
C) raiz quadrada de -5+14 . (-8 -2)
  _________
√(- 5 + 14)      .  ( - 8 - 2)

= √9 . ( -10) = 3.(-10) = - 30

¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨

D) raiz quadrada de +36 : (+2) + (-5)² .(-4)

= √36 : 2 + 25 . (-4)
= 6: 2 - 100
= 3 - 100
= - 97