Given that a and B are opposite to each other, C and D are reciprocal to each other, and the absolute value of X is equal to 1, find the value of X & sup2; - (a + B + CD) x-cd

Given that a and B are opposite to each other, C and D are reciprocal to each other, and the absolute value of X is equal to 1, find the value of X & sup2; - (a + B + CD) x-cd

a. B is opposite to each other, C and D are reciprocal to each other, and the absolute value of X is equal to 1,
A + B = 0, CD = 1, x = 1, or x = - 1
x^2=1
-(a+b+cd)x-cd=-x-1
x=1,=> =-2
x=-1 => =0
x^2-(a+b+cd)x-cd=1-cdx-1=-x
=1, or - 1