搜搜做题作业网4-(4-x)=0.25x怎么解
来源：学生作业帮助网 编辑：作业帮 时间：2024/08/19 13:54:14
4x=5x4x-4x=5x-4x0=xx=0
x+4x=x+120x+4x-x=1204x=120x=30(等号最好对齐写)
1.3/4x=2x=8/3
5x=100x=20
4+6X（3x-2）=16x4+18x-12=16x18x-16x=12-42x=8x=4
0.25X=0.4X4X=6.4
X-X+1/4X=561/4X=56X=56÷1/4X=224
4×-×=39.33×=39.3×=39.3/3×=13.1再答：希望我的回答能帮到你
60+x=4x（12+x）60+x=48+4x4x-x=60-483x=12x=4
4x=x+393x=39x=13
再问：2x是怎么得来的
x=solve('y=4*x*x*x+3*x*x+x+2*x+1','x')x=1/4*(-3+8*y+2*(9-12*y+16*y^2)^(1/2))^(1/3)-3/4/(-3+8*y+2*(9-
x-1/2x+27=4/5x可以写成1/2x+27=4/5x,即27=（4/5x-1/2x）,27=(8/10-5/10)x,27=3/10x,所以x=27/(3/10)=90
x^4-4x^3-4x^2+15x+18=0x^4-3x^3-x^3+3x^2-7x^2+21x-6x+18=0(x-3)(x^3-x^2-7x-6)=0x1=3x2=3.49449283705542
1.2x+4-x=9合并,x+4=9∴x=52.x+6=4+3x移项,-2x=-2∴x=1:.
1/5x+1/4x*(x-1/4x)=181/5x+1/4x*3/4x=181/5x+3/16x²=1815x²+16x-1440=0x=[-16±√(256+86400)]/30
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^
6x=24x=4
零乘以任何数都得零X=0
（4x+6)²-4=(4x+6+2)(4x+6-2)=16(x+1)(x+2)=(6x+6)(3x+4)=6(x+1)(3x+4)当x+1=0时,即x=-1时方程成立当x+1≠0时,16（x