\(2^4.5-\left[131-\left(13-4\right)^2\right]\)
\(=2^4.5-\left(131-9^2\right)\)
\(=2^4.5-\left(131-81\right)\)
\(=2^4.5-50\)
\(=16.5-50\)
\(=80-50\)
\(=30\)
24.5-[131-(13-4)^2]
=24.5-[131-81]
=16.5-50
=30
\(2^4.5-\left[131-\left(13-4\right)^2\right]\)
\(=2^4.5-\left[131-9^2\right]\)
\(=2^4.5-\left[131-81\right]\)
\(=2^4.5-50\)
\(=16.5-50\)
\(=80-50\)
\(=30\)