按(x-4 )的幂展开多项式(x)=(x)^4-5(x)^3+(x)^2-3x+4

若多项式f(x)=2x^4-7x^3+8x^2+7x-8和 g(x)=x^2-3x+4，则f(x)div g(x)的商和余式为 （）。若多项式$f(x)=2x^

设多项式(x)=(x)^3+x+4，则矩阵(x)=(x)^3+x+4，则(x)=(x)^3+x+4________。(x)=(x)^3+x+4(x)=(x)^3

13.-|||-多项式 ((x)_(1),(x)_(2),(x)_(3))=(({x)_(1)+(x)_(2))}^2+(({x)_(1)+(x)_(3))}^

若多项式(x)=(x)^4+(x)^3-3(x)^2-4x-1 和 (x)=(x)^3+(x)^2-x-1，则f(x)和g(x)的公因式为（）。A、x+1B、x

27.求下列多项式的有理根:1) x^3-6x^2+15x-14; 2) 4x^4-7x^2-5x-1;3) x^5+x^4-6x^3-14x^2-11x-3

5.求 f(x)与 g (x)的最大公因式:-|||-(1) (x)=(x)^4+(x)^3-3(x)^2-4x-1 (x)=(x)^3+(x)^2-x-1;-

5.求f(x)与g (x)的最大公因式:-|||-(1) (x)=(x)^4+(x)^3-3(x)^2-4x-1 (x)=(x)^3+(x)^2-x-1;-||

解下列方程：(1)x2+x=0；(2)x2-2√3x=0；(3)3x2-6x=-3；(4)4x2-121=0；(5)3x(2x+1)=4x+2；(6)(x-4)

解方程_(2)-3(x)_(3)+4(x)_(4)=-5-|||-x1- 2x3+324 =-4-|||-(x)_(1)+2(x)_(2)-5(x)_(4)=1

用消元法解下列线性方程组:-|||- x1+3x2+5x3-4x4 =1, x1+3x2+2x3-2x4+x5=-1, x1-2x2+x3-x4-x5=3, x