x(x-1)-(x-1/3)(x+1/3)=?3Q
问题描述:
x(x-1)-(x-1/3)(x+1/3)=?3Q
答
x(x-1)-(x-1/3)(x+1/3) =x^2-x-x^2+1/9 =-x+1/9
x(x-1)-(x-1/3)(x+1/3)=?3Q
x(x-1)-(x-1/3)(x+1/3) =x^2-x-x^2+1/9 =-x+1/9