Question

38. Qual o valor da expressão:
( 5+ 6+ 7).( 5+ 6 - 7).( 5- 6 + 7).(- 5+ 6 + 7)?

Answer 1

(5 + 6 + 7 ) . ( 5 + 6 - 7) . (5 - 6 + 7) . ( -5 + 6 + 7)
+ 18 . ( + 4) .+ 6) . ( + 8)

72 . ( + 6) . ( + 8)
432 . 8
3.456

Answer 2

( 5 + 6 + 7).( 5 + 6 - 7).( 5 - 6 + 7).(-5 + 6 + 7) = 18.4.6.8 = 3456