Question

Calcule as expressão
A) 4+(15-6)+6.(2+3)=
B) [8-√9+(4+1)]+14=
C) 2+{3+[√25+(3.4)]-2}-√49

Answer 1

A) 4+(15-6)+6*(2+3)=

4+9+6*5=4+9+30=13+30=43

B) [8-√9+(4+1)]+14=

[8√9+5]+14= [8-3+5]+14= [5+5]+14=10+14=24

C) 2+{3+[√25+(3*4)]-2}-√49=

2+{3+[√25+12]-2}-√49=

2+{3+[5+12]-2}-7=

2+{3+17-2}-7=

2+{20-2}-7=

2+18-7=20-7=13