一道多项式除以多项式[(4x-2)的平方+8(x+2)(x-2)-8(x-1)的平方×(x-2)]÷[4(x-2)]急!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
问题描述:
一道多项式除以多项式
[(4x-2)的平方+8(x+2)(x-2)-8(x-1)的平方×(x-2)]÷[4(x-2)]
急!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
答
>> syms x;y=((4*x-2)^2+8*(x+2)*(x-2)-8*(x-1)*(x-2))/(4*(x-2));
>> simplify(y)
ans =
(4*x^2+2*x-11)/(x-2)
如果你的题没写错的话,应该就是这样.