Question

1) Calculati: a) -18+(-5)*(-12)+(-3) ridicat la puterea 2..=
b)-41+{-172+[430-(195-190)-5(-3) ridicat la puterea 2]}=

<<

Answer 1

* a) -18 + (-5) · (-12) + (-3)² = 
-18 + 60 + 9 = 42 + 9 = 51

b) -41 + {-172 + [430 - (195 - 190) - 5 · (-3)²]} = 
-41 + [-172 + (430 - 5 - 5 · 9)] = 
-41 + [-172 + (430 - 5 - 45)] = 
-41 + [-172 + (425 - 45)] = 
-41 + (-172 + 380) = 
-41 + 208 = 167

/robertinni