4×(x+1.5x+3x)=110cm方程怎么解急

x方-4x+3=(x- )方-1 4(X方+3X+1)方-(X方+X-4)方-(X方+5X+6)方因式分解 x方+3=2X方 解方程4x方+x+2x根号下(3x方+x) =9 x方-4x+3 =0 x方-4x+3=0 4(x方+y)(x方-y)-(2x方-y)方,其中x=2,y=-3 3x(2x方-x+4) x方-1分之5-x方+2x-3分之4=x方+4x+3分之2 X方-3X x方+4x+4=0 3x方+2x-5=? x方+3/x-4x/x方+3=3用换元法解 5X方-2X-4/1=X方-2X+4/3因式分解 解方程2X方+3X-4 =5除以2X方+3x 用秦九韶算法求多项式f（X）=7X方+6X方+5X方+4X方+3X方+2X方+X当x=3时的值 已知x方-2x+3=0,求2x方-4x+20 8/(x方+x)+2/(x方-x)=4/(x方-1) 3x方减4x=2x 快