Question

a)-2+3.{4-5.[3.(-4)]}

Answer 1

-2+3.{4-5.[3.(-4)]}=
-2+3{4-5[-12]}=
-2+3{4+60}=
-2+3{64}=
-2+192=
190

Answer 2

-2+3{4-5.[-12]}
-2+3{4+60}
-2+3.64
-2+192
190