Given that XY is a real multiplier and x minus 1 + 3 times the extension y minus 2 under the root sign, the square of the extension is equal to 0, and the value of X – y is obtained

Given that XY is a real multiplier and x minus 1 + 3 times the extension y minus 2 under the root sign, the square of the extension is equal to 0, and the value of X – y is obtained

analysis
Original formula = √ (x-1) + 3 (Y-2) = 0
therefore
x=1
y=2
x-y=-1