灵鹊做题网-2x(-3)x(-4)怎么解？
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/09 04:48:38
X+X-10+X-2=36*33x-12=1083x=120x=40
x>2时3x>(x-2)(x+6)x^2+4x-12
1.3/4x=2x=8/3
4+6X（3x-2）=16x4+18x-12=16x18x-16x=12-42x=8x=4
2x²-4-2x²+（5/3x)=-3x(5/3x)-4=-3x5-12x=-9x²9x²-12x+5=012²-4*9*5=144-180=-36
4x(x-5.07)+x=8.634x-20.28+x=8.635x=8.63+20.285x=28.91x=5.78218-4x=2x+32x+4x=18-36x=15x=2.5(2x-4)*3=(
3x-2x(x-1)=4*1.5-7x3x-2x^2+2x=6-7x2x^2-12x+6=0(x-3)^2=6x=3±√6再问：看不懂啊
-2x+4=-3x3x-2x=-4x=-4
两边同时乘20x得8+1120x=151120x=7x=7/1120x=1/160
再问：2x是怎么得来的
1.2x+4-x=9合并,x+4=9∴x=52.x+6=4+3x移项,-2x=-2∴x=1:.
4X+18=2(3X+1)4X+18=6X+26X-4X=18-22X=16X=16÷2=8
3(x+2)=4(x+1)3x＋6=4x＋46－4=4x－3xx=2
两边乘2(x-3)(x-2)8(x-2)+16(x-3)=41(x-3)(x-2)24x-64=41x²-205x+24641x²-229x+310=0x=(229-√1601)/
x/(x-2)=(x-4)/(x-5)方程两边同乘(x-2)(x-5),得:x(x-5)=(x-4)(x-2)x^2-5x=x^2-6x+8x=8x/(x-3)=(x+1)/(x-1)x^2-x=x^
2x+4>3x4>3x-2x4>xx
(x^2)^4+2x^3·x^5-(3x^4)^2=x^8+2x^8-9x^8=-6x^8
x=28再问：写清楚解答过程啊再答：25/28x=x-33=x-25/28x3=3/28xx=3*28/3x=28
等式两边*（X-2）（X+3)2(X+3)+x（Ｘ－２）＝（X-2）（X+3)２Ｘ+６+Ｘ平方-２Ｘ＝Ｘ平方+Ｘ-６Ｘ＝１２