Question

2{4[7+4(5x3-9)}-3(40-8)}

Answer 1

2{4[7+4(5x3-9)]-3(40-8)} =

2{4[7+4(15-9)]-3(32)} =

2{4[7+4(6)]-96} =

2{4[7+24]-96}=

2{4[31]-96}=

2{124-96}=

2{28}= 56