3X四次方减八X三次方加六X平方的-搜答案-搜狗做题网

5x³-6x²+15x-28____________________x+2)5x⁴+4x³+3x²+2x+15x⁴+10x³_

我来试下吧..注：9x四次方的数学输入是9x^4.以下雷同9x^4-3x^3-7x^2-3x-2=3x^3(3x-1)-3x(3x-1)+2x^2-2=(3x-1)(3x^3-3x)-2(x^2-1)

不含x的三次方项则k-1=0k=1

x+2=√3两边平方x²+4x+4=3x²+4x=-1所以原式=x²(x²+4x)=-x²=-(√3-2)²=-7+4√3

1.原式x^4+2x^3+3x^2+2x+1=x^4+2x^2+1+2x^3+x^2+2x=(x^2+1)^2+x^3+x+x^3+x^2+x=(x^2+1)^2+x(x^2+1)+x(x^2+x+1

3x^4-x^3+kx^3+x-1=3x^4+(-1+k)x^3+x-1不含x^3项,则-1+k=0k=1

5X²-2=（√5x+√2)(√5x-√2)x四次方-4x²+4=(x²-2)²=(x+√2)²(x-√2)²x四次方+2x²-8

设所求多项式为A,则A+x²-3x³+2-3x^4=-x³-5x³+5则A=-x³-5x³+5-(x²-3x³+2-3x

原式=x²×(-x³)+2x×(x的4次方)+x×x的4次方=-x的5次方+2x的5次方+x的5次方=2x的5次方很高兴为您解答,祝你学习进步!【学习宝典】团队为您答题.有不明白的

原式＝(x-y)^4(x-y)(x-y)^3=(x-y)^4(x-y)^4=2(x-y)^4

x四次方-6x三次方+9x二次方分之x二次方-3x=x(x-3)/x²（x²-6x+9）=(x-3)/x(x-3)²=1/x(x-3)=1/(x²-3x)如追加

x四次方+3x三次方-6x-4=(x^4-4)+3x(x^2-2)=(x^2-2)(x^2+2)+3x(x^2-2)=(x^2-2)(x^2+2+3x)=(x+1)(x+2)(x^2-2)祝学习进步

(9x^4-12x^3+54x^2)÷3x^2=3x^2(3x^2-4x+18)÷3x^2=3x^2-4x+18

x^4+4x^3+3x^2+4x+2=x^4+x^2+4x^3+4x+2x^2+2=x^2(x^2+1)+4x(x^2+1)+2(x^2+1)=(x^2+1)(x^2+4x+2)

x⁴+x³+4x²+3x+3=x⁴+x³+x²+3x²+3x+3=x²(x²+x+1)+3(x²

x^4+3x^3-3x^2-11x-6=x^3(x+3)-3x(x+3)-2(x+3)=(x^3-3x-2)(x+3)=(x+1)(x^2-x-2)(x+3)=(x+1)(x+1)(x-2)(x+3)

x^2(x^2-4x+4)-x^2+4x-4=0(x(x-2))^2-(x-2)^2=0x^2-3x+2=0x=1,2x^2-x-2=0X=2,-1

17x的9次方,上式为2x的9次方-64x的9次方+81x的9次方

4次=3次×1次=2次×2次所以系数=1×1+2×(-3)+(-3)×2=1-6-6=-11