Question

A=
$( { - 5}^{3} )$
B = (-4)×(-2) calcule A × B

alternativas ⤵️
a) -10 b) -1000 c)-120 d ) 1000 e ) 120

calcule (-3)×(-8)×(-6)×(+2)

alternativas ⤵️

a) -288 b) -19 c) 288 d) 19 e )-20

(-7)×(-5)×(-6)×(+2)
alternativas⤵️

a) -420 b)+210 c)-210 d) 420 e ) -20

(-6+4)×(-5+9)

alternativas ⤵️

a)-14 b)10 c) 11 d) -12

​

Answer 1

1 ) A = ( - 5 ) 3 = - 125

B = ( - 4 )× ( - 2 ) = + 8

A × B =

( - 125 ) × 8

- 1000

opção B

2) ( - 3 ) × ( - 8 ) × (- 6 ) × ( + 2 )

+24 × ( - 12 )

- 288

opção A

3) ( - 7 ) × ( - 5 )× ( - 6 ) × ( + 2 )

+ 35 × ( - 12 )

- 420

opção A

4) ( - 6 + 4) ×( - 5 + 9 )

- 2 × 4

- 8