If a and B are opposite to each other, C and D are reciprocal to each other, | x | = 3, then the square of (a + b) x - CD | x | + 5 =?

If a and B are opposite to each other, C and D are reciprocal to each other, | x | = 3, then the square of (a + b) x - CD | x | + 5 =?


The square of (a + b) x - CD | x | + 5
=0-1*|x|+5
=5-|x|
=5-3
=2