inner to outer
PEMDAS
order of operations
Parenthasees
Exponents
Mulitplication
Division
Addition
Subtraction
so first innermost parenthasees
7+4=11
11-7=4
we have
8{[11*2]-[4*4]}
parenthasees inner
11*2=22
4*4=16
now we have
8{22-16}
inner parentahees again
22-16=6
now we have
8{6}
8 times 6=48
answer is 48
