已知(3x+1)(x-1)-(x+3)(5x-6)=x2-10x+A 则A =____
问题描述:
已知(3x+1)(x-1)-(x+3)(5x-6)=x2-10x+A 则A =____
2表示平方、
答
A=-3X^2-21X+17
已知(3x+1)(x-1)-(x+3)(5x-6)=x2-10x+A 则A =____
2表示平方、
A=-3X^2-21X+17