1：如果根号下1-3X+16Y-51=0求XY的值 2：若（X-Y+5）²与根号下X+Y-2互为相反数,求X、Y的值

1：如果根号下1-3X+I6Y-5I=0满足上式的条件是1-3x=06y-5=0解得x=1/3 y=5/62：若（X-Y+5）²与根号下X+Y-2互为相反数则(x-y+5)²+√(x+y-2)=0满足上式的条件为x-y+5=0 (1)x+y-2=0 (2)(1)+(2) 2x+3=0 x=-3/2代...