(X^5- 6X^3 + 7X^2 -7X + 3)/(X^2 -2X +1)
来源:百度知道 编辑:UC知道 时间:2024/06/11 04:33:15
分母=(X-1)^2
分子=X^3*(X^2-1)-5*X^3+7*X^2-7*X+3
=X^3*(X^2-1)-5*X^2*(X-1)+2*X^2-7*X+3
=X^3*(X^2-1)-5*X^2*(X-1)+2*X*(X-1)-5*X+3
=X^3*(X^2-1)-5*X^2*(X-1)+2*X*(X-1)-5*(X-1)-2
原式=[X^3*(X+1)-5*X^2-2*X-5]/(X-1)-2/(X-1)^2
左式分子=X^4+X^3-5*X^2-2*X-5
=>X^3*(X-1)+2*X^2*(X-1)-3*X*(X-1)-5(X-1)-10
=>左式=X^3+2*X^2-3*X-5-10/(X-1)=X^2*(X-1)+3*X*(X-1)-5-10/(X-1)
原式=X^2*(X-1)+3*X*(X-1)-5-10/(X-1))-2/(X-1)^2
就化简到这吧,累死我了!
(x+1)(x+3)(x+5)(x+7)+15
分解(x+1)(x+3)(x+5)(x+7)+15
因式分解 (x+1)(x+3)(x+5)(x+7)+15
(x+3)(x+4)(x+5)(x+6)=8
分式方程问题:解方程:[x+1)/(x+2)]+[(x+6)/(x+7)]=[(x+2)/(x+3)]+[(x+5)/(x+6)]
x-5/x-7+x-2/x--4=x-3/x-5+x-4/x-6
已知x=根号2-1,计算x^10+2x^9-2x^8-2x^7+x^6+3x^2+5x+1的值
方程(x+2)/(x+1)-(x+4)/(x+3)=(x+6)/(x+5)-(x+8)/(x+7)
X+1分之X+2+X+7分之X+8=X+5分之X+6+X+3分之X+4
x^6+x^5+x^4+x^3+x^2+x+1=0