0.8*50x>0.7*50(x+4) 0.8*50x=0.7*50(x+4) 0.8*50x(1)0.8*50x>0.7*50(x+4)(2)0.8*50x=0.7*50(x+4)(3)0.8*50x
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0.8*50x>0.7*50(x+4) 0.8*50x=0.7*50(x+4) 0.8*50x(1)0.8*50x>0.7*50(x+4)(2)0.8*50x=0.7*50(x+4)(3)0.8*50x
50x(x-1)+60x(x-4)=5100
x+ x+(x*50%)=1.5X?
X-X/12-X/7-X/8-X/4-X/20-X/5-30-120-300=50解方程
50×0.8+(x-50)×1.2=x x等于
=(x^2-5x)^2+10(x^2-5x)+24 =x^4-10x^3+25x^2+10x^2-50x+24 这是怎么转化的(X-1)(X-2)(X-3)(X-4) =(X-1)(X-4) (X-2)(X-3)=(x^2-5x+4)(x^2-5x+6)=(x^2-5x)^2+10(x^2-5x)+24=x^4-10x^3+25x^2+10x^2-50x+24=x^4-10x^3+35x^2-50x+24
=(x^2-5x+4)(x^2-5x+6) =(x^2-5x)^2+10(x^2-5x)+24 是怎么转化的(X-1)(X-2)(X-3)(X-4) =(X-1)(X-4) (X-2)(X-3)=(x^2-5x+4)(x^2-5x+6)=(x^2-5x)^2+10(x^2-5x)+24=x^4-10x^3+25x^2+10x^2-50x+24=x^4-10x^3+35x^2-50x+24不好意思我弄错了,是=(x^2-5
x+(2-x)+(4-x)=50怎么解
x/50-4=x/60+2 x=?
4X²+100=50X 求x
(x+50)0.8=x+10
0.8 乘 0.45x-x=50
20%=(X+4)/(50+X)x=?(50g*8%)+(x*40%)=(50+x)20%,x=?
26.2-9X=8.24(X+2)=11.64X+0.5乘3=6.75X-3.3=7.31.7X-0.7X=20X-4.5+5.5=158X+5乘7=914.8X+3.4乘6.7=34.785.4X+0.6X=6.63.5(X乘7)=25.913.056除X+3.20.35乘X=8.898(X-3)-5X=275X+20==10024-16X=2.77.5乘6-5X=0.825X-16X=2.73.5乘C(X+50)=238X-12.6=8.4
当2x=30x 3x=40x 4x=50x时 那么
4x-50=7x-56
3x+50=4(x-3)
4x+2(20-x)=50