题目有问题啊
是3(x²-2x+1)与x(3x-4)的值分别等于5?两个题目?题目错了是 当x为何值时,3(x²-2x+1)与x(3x-4)的差等于5？噢3(x²-2x+1)-x(3x-4)=5-6x+4x+3=5-2x=2x=-1计算过程在详细点3(x²-2x+1)-x(3x-4)=53x^2-6x-3x^2+4x=5-6x+4x+3=5-2x=2x=-1