If | a + 2 | + [(B-3) square] is equal to 0, find the value of 3AB - (4B Square),

If | a + 2 | + [(B-3) square] is equal to 0, find the value of 3AB - (4B Square),

|A + 2 | + [(B-3) squared] equals 0
Then: | a + 2 | = 0, a = - 2
[(B-3) square] = 0, B = 3
3AB - (square of 4B)
=3*(-2)*3-(4*3²)
=-54