Question

-20-5.[(-2).(4-7)+8-2.5]-42.[2².(2⁵-4.√49)-1]:63 me ajudem pffff gnt é para 21:30

Answer 1

-20-5.[(-2).(-3)+8-10]-42.[4.(32-4.7)-1]:63 =
-20-5.[+6+8-10]-42.[4.(4)-1]:63=
-20-5.[4]-42.[16-1]:63=
-20-5.[4]-42.[15]:63=
-20-5.[4]-10=
-20-20-10=
-50

Answer 2

-20 - 5.[(-2) . (4-7) + 8 - 2.5]- 42.[2².(2elevado a quinta - 4.√49 - 1): 63 =
-20 -5.[(-2) . (4-7) + 8 - 2.5]-42.[4.(32 - 4.7) - 1)]:63 =
-20 - 5.[(-2) . (-3) + 8 - 2.5] - 42.[4.(32-28) - 1]:63 =
-20 - 5.[(-2) .(-3) + 8 - 2.5] - 42.[4. 4 - 1]:63 =
-20 -5 .[6 + 8 - 2.5] - 42.[4.4 - 1]:63 =
-20 - 5.[6 + 8 -10] - 42.[16 - 1]:63 =
-20 - 5. 4 - 42. 15 : 63 =
-20 -20 -630 :63 =
-20 - 20 - 10 = - 50