Question

{[√64 -8÷2³(15-5 x 2)] +4²}

Answer 1

{[√64-8÷2³.(15-5×2)]+4²}=

{[ 8 -8 ÷8 .(15 - 10)]+16}=

{[ 8 - 1 .5]+16}=

{[8-5]+16}=

{ 3 + 16}=

19.