If x.y is a rational number, and the absolute value of X+Y+1 and (x-y-2) are opposite to each other, then (3x-y) Details of the best, the best difficult steps have been explained. Happy New Year The fourth power of (3x-y)= If x.y is a rational number, and the absolute value of X+Y+1 is opposite to (x-y-2), then (3x-y) Details of the best, the best difficult steps are explained. Happy New Year The fourth power of (3x-y)=

If x.y is a rational number, and the absolute value of X+Y+1 and (x-y-2) are opposite to each other, then (3x-y) Details of the best, the best difficult steps have been explained. Happy New Year The fourth power of (3x-y)= If x.y is a rational number, and the absolute value of X+Y+1 is opposite to (x-y-2), then (3x-y) Details of the best, the best difficult steps are explained. Happy New Year The fourth power of (3x-y)=

The absolute value is greater than or equal to 0, and the quadratic is greater than or equal to 0. If the two are opposite to each other, they are both 0.
The opposite of 0 is 0
So |x+y+1|=0
(X-y-2)^=0
So x+y+1=0
X-y-2=0
Solution: x=1/2 y=-3/2
So (3x-y)^4=3^4=81

Given that the absolute values of (x+3)2 and y-2 are mutually opposite, z is the rational number with the smallest absolute value, and find the value of y power +xyz of (x+y)

Because the absolute values of (x+3)2 and y-2 are mutually opposite
So (x+3)2=0, absolute value of y-2=0, then x=-3, y=2
Because z is the least absolute rational number, z =0
Just add the values in.