根据已知条 件可知,将X=Y+8代入XY+Z^2=-16中,得到:Y(Y+8)+Z^2=-16
Y^2+8Y+16+Z^2=0
(Y+4)^2+Z^2=0
因为(Y+4)^2和Z^2均是大于等于0的非负数,非负数之和=0,则这两个非负数分别=0,则:(Y+4)^2+=0,Z^2=0,所以:Y=-4,Z=0,X=4 ,因此:XYZ=4*(-4)*0=0
根据已知条 件可知,将X=Y+8代入XY+Z^2=-16中,得到:Y(Y+8)+Z^2=-16
Y^2+8Y+16+Z^2=0
(Y+4)^2+Z^2=0
因为(Y+4)^2和Z^2均是大于等于0的非负数,非负数之和=0,则这两个非负数分别=0,则:(Y+4)^2+=0,Z^2=0,所以:Y=-4,Z=0,X=4 ,因此:XYZ=4*(-4)*0=0