Answer :
4³(100/25)-5⁰
x⁰=1
pemdas
parenthasee first
100/25=4
4³(4)-5⁰
exponents
64(4)-5⁰
64(4)-1
multiply
256-1
subtract
255
x⁰=1
pemdas
parenthasee first
100/25=4
4³(4)-5⁰
exponents
64(4)-5⁰
64(4)-1
multiply
256-1
subtract
255