Question 238133
we  presume  last  right  bracket  is  after  the  last  2
.
4[ -3{ (-1)^2-3 }^2 ]
.
4[ -3{ 1-3 }^2 ]
.
4 [ -3{2}^2 ]
.
4[ -3 {4} ]
.
4[ -12 ]
.
-48
.
.