3/8t²-3t+3=0解:3/8t²-3t+3=0方程两边同时乘以8/3得:t²-8t+8=0配方得:(t-4)²=8t-4= ±2√2则t=4+2√2或 t=4-2√2
自己看吧,如果解有范围自己去一个