灵鹊做题网0.25:24=x:4 3
来源：学生作业帮助网 编辑：作业帮 时间：2024/06/10 18:11:17
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两边乘22x+2x+48+x+4=14x14x-2x-2x-x=48+49x=52x=52/9
题目应该是（x-1)(x-2)(x-3)(x-4)=24,不然解不了[(x-1)(x-4)][(x-2)(x-3)]=24[x^2-5x+4][x^2-5x+6]=24设x^2-5x+5=y所以(y-
(x-22)+(x-24)+(x-27)+(x-20)=xx-22+x-24+x-27+x-20=x4x-93=x4x-x=933x=93x=31
0.3x-x×0.25=21.15-7x0.3x-0.25x=21.15-7x0.5x=21.15-7x0.5x+7x=21.157.5x=21.15x=21.15÷7.5x=2.82这里涉及到“两边
(0.3+7-0.25)x=21.157.05x=21.15x=21.15/7.05=3
（X+X)+(X-X)+(X*X)+(X/X)=1002X+0+X*X+1=1002X+X*X=99X(X+2)=99X=9再问：请问X(X+2)=99解为什么就等于9了呢没看懂再答：换成算术法你就明
0.3x-x乘以0.25=21.15-7x0.05x+7x=21.157.05x=21.15x=3
x-0.25=0.25x化为x-0.25x=0.25即0.75x.=0.25所以x=0.25/0.75=1/3=0.333333
(x-22)+(x-24)+(x-27)+(x-20)=xx-22+x-24+x-27+x-20=x4x-93=x4x-x=933x=93x=31
133.6X=84X=2.5左边=24*2.5+9.6*2.5=84=可边26.7X=33.5X=5左边=14.3*5-7.6*5=33.5=右边35X=70X=14左边=7*14+8*14-10*1
(3x/24+2x/24)*3+(2x/24+x/24)y=x15x/24+3xy/24=x15x+3xy=24x9x-3xy=03x-xy=0x(3-y)=0结果：x=0或y=3
方程是啥?如果为：x^0.75-x^0.25=0.75令t=x^0.25,则x^0.75=t^3方程化为:t^3-t=0.75,解得：t=1.26255112740716x=t^4=2.5409486
x+24=4.5x24=4.5x-x24=3.5xx=48/7
28X=84X=30.8X=60X=751.6X=8X=53X=24X=80.5X=1X=2再问：要过程啊我这是作业汗快点把我很急谢谢你啊再答：30X-2X=8428X=8428X÷28=84÷28X
0.3x+7x-0.25x=21.257.05x=21.25705x=2125x=425/141
0.3x+7x-0.25x=7.05x7.05x=21.15x=3
10x-3.14*x*x*0.25=3.14*x*x*0.7510x=3.14*x*x*0.75+3.14*x*x*0.253.14*x*x*(0.75+0.25)-10x=03.14*x*x-10x
(1)0.3x+7x-0.25x=21.5(0.3+7-0.25)x=21.57.05x=21.5x=141/430(2)8.7*(36-x)=031.2-8.7x=031.2=8.7xx=312/8