(25/2+X)/(36+50)=0.25帮我解下这个方程
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0.2x-25%x=36
50x^2+25x-8=0求x
20%x+[25*(20%x)]+12=50%x+2
4X+2(36-X)=50
=(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
7x+2x=0.81 4(x-6)=36 2x+0.2xX2=36 3.4x-6=4.2 7.8x+5=44 7.5x+2.5=20 25.8-2x=12-7 4x+2.8=5.040.9x-4X1.3=1.1 1.3x7=25.1-8x 4.8+0.5x=6.3 (25+2x)X4=340大写的X是乘 小写的是x 求x是几
x-2x+3x-4x+5x.+99x-100x=25求解
解方程,5%x-7.5%x=22.5 25%x-7%x=36 2.3%x+x%=6.6 x-30%x=1.4 x÷50%=10 65%x-25%x=8
x+3x+x-2+x+x+50%x=188 求x
60%x+25=40 x+30%x=52 19-120%x=7 4分之3x-5%x=17.5 x-10%x=18 (1-25%)x=36 2x+30%x=9.2
解方程:2x-36=204 (1-25%)x=36 5x+4分之1*16=34 50%x-35%x=3
x X 2x=25
x-0.2x=36
(14x+7)(25x-36)+7(1+2x)(35-25x)=-5
化简:2x^2-50/x^2-10x+25(x=3)
x/50-3=x/60+2 (15+25/x)=120/10+x
百分数解方程;(1)百分之48X-百分之12X=36 (2)X-百分之78X=8.8 (3)百分之25X=64(4)3X-百分之120X=50分之9