(x-m)²+6x=4m-3x²-2mx+m²+6x-4m+3=0x²+(6-2m)x+(m²-4m+3)=0∵关于x的一元二次方程(x-m)²+6x=4m-3有实数根∴(6-2m)²-4×1×(m²-4m+3)≥0即36-24m+4m²-4m²+16m-12...