方程x三次方 16=4x-搜答案-智慧作业帮

2x^4-x^3+4x^3-2x^2-14x^2+7x-4x+2=0(2x-1)(x^3+2x^2-7x-2)=0(2x-1)(x^3-2x^2+4x^2-8x+x-2)=0(2x-1)(x-2)(x

x^3-4x+3=0x^3-x-3x+3=0x(x^2-1)-3(x-1)=0x(x-1)(x+1)-3(x-1)=0(x-1)(x^2+x-3)=0x-1=0或x^2+x-3=0x=1或x=(-1±

x=0显然不是根.两边同时除以x^2得：3x^2-2x-2-2/x+3/x^2=0令t=x+1/x则x^2+1/x^2=t^2-2代入方程得：3(t^2-2)-2t-2=03t^2-2t-8=0(3t

又是我,刚才回答你的那个：(x-6)(x-根号2)(x+根号2)=0

x三次方-2x²-4x+8=0x^2(x-2)-4(x-2)=0(x-2)(x^2-4)=0(x+2)(x-2)^2=0x+2=0或x-2=0x=-2或x=2

(2x^4)y³－x³y^4=(x³y³)(2x－y)=(xy)³(2x－y)=4³×(1/16)=4

题目是-x^3+3x^2-3x+5=0吗?核对一下有没有弄错的再问：其实题目是1/(x-2)+1/(x-1)=x-2/(1-x)再答：貌似你给的式子化不过去啊，还有，小月满满已经把你那个3次方的解决了

x四次方-3x三次方-8x平方+6x+4=0(x^4+x^3-2x^2)-4x^3-4x^2+8x-2x^2-2x+4=0x^2(x^2+x-2)-4x(x^2+x-2)-2(x^2+x-2)=0(x

x³-3=3/8x³=3+3/8x³=27/8x=3/2很高兴为您解答,【the1990】团队为您答题.请点击下面的【选为满意回答】按钮.

2x³-x²+4x-2=0x²(2x-1)+2(2x-1)=0(x²+2)(2x-1)=0∵x²+2≥2∴2x-1=0∴2x=1∴x=2分之1很高兴为

一元三次x=2或x=-1/2

x^3＋x^3＝2x^3x^3－x^3＝0a^2•（－a^4）＝－a^6－a^2•（－a^4）＝a^6－x•x^2＝－x^3(－x)^2•x^3＝x^5

2x的三次方-2x(x的两次方-2x+6)=-4x(1-x)+162x³-2x³+4x²-12x=-4x+4x²+1612x-4x=-168x=-16x=-2

x^3=27/8x=3/2

x^4+6x²=5x³整理,得x^4-5x³+6x²=0x²(x²-5x+6)=0x²(x-2)(x-3)=0x=0或x=2或x=

（1）(x^2+4)^2-16x^2=0(x^2+4x+4)(x^2-4x+4)=0(x+2)^2(x-2)^2=0所以x1=x2=-2,x3=x4=2（2）x^3-x=0x(x^2-1)=0x(x+

x三次方+x平方-5x+3=0x^3+x^2-2x-(3x-3)=0x(x^2+x-2)-3(x-1)=0x(x+2)(x-1)-3(x-1)=0(x-1)(x^2+2x-3)=0(x-1)(x+3)

x³=1/8x³=(1/2)³x=1/2很高兴为您解答,【the1990】团队为您答题.请点击下面的【选为满意回答】按钮.

(x-1)^3=8=2^3=>x-1=2=>x=3

顺便说一下,我算的算式是x^4-(2*x)*(2*x)*(2*x)+2^x=4共4个根,都是一样复杂,我给你贴了其中一个.