Question

resolva as expressões A) (-5)^2+(-4)-(+10) B) 75-[2-^3-5.4]-30 C) (-7)^2-(-6). (-5) D) -4^3-(8+3. (-7)+9

Answer 1

A) 25-4-10=

25-14= 11

B)75-[8-20]-30=

75-[-12]-30=

75+12-30=

87-30= 57

C)49-(+30)=

49-30= 19

D)-64-(8-21)+9=

-64+13+9=

-64+22= - 42