4(x+24)=200 2.5x+0.6=1.68-0.5x
4(x+24)=200 2.5x+0.6=1.68-0.5x
4X+0.5X=13.5X
(X+X)+(X-X)+(X*X)+(X/X)=100
4-x=2(-0.5x²+2.5x-2)
x+(x+24)+(x+4)/2=7x
3x/200+4x=0.5
5*(x-2)=4*(x+3) 2x+(50-x)*4=140 3x-(8-x)=20*4 200x=(x-0.5)*2
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
(x-22)+(x-24)+(x-27)+(x-20)=x
已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值
30X-2X=84 5.8X-X=60 6.6X-5X=8 4X-X=24 1.5X-X=1
先化简再求值先化简再求值:(x-x/x+1)(x+1/x^2+4x+4)(x^2-4/x^2-2x),其中x=-0.5