6x 5点6x=2点四怎么解方程
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9.4X5-5x=4547-5x=455x=47-455x=2x=2÷5x=0.4
5.6x0.7+0.2x5.6+0.56=5.6x0.7+0.2x5.6+5.6x0.1=5.6x(0.7+0.2+0.1)=5.68.25-2x=7.6252x=0.625x=0.31253x+15
1.8-2x=0.61.8-0.6=2x1.2=2xx=1.2÷2x=0.6
0.7x-0.6x=0.010.1x=0.01x=0.1
120再答:60再问:过程再答:2x+24=1442x=120x=60
有几个实数点?应该是有几个实数解吧?!答案是:1个.设:f(x)=x^5+x-3f'(x)=5x^4+1令f'(x)>0,即:5x^4+1>0可见,在实数范围内,无论x取何值,上述不等式均成立即:x∈
6x+8=7(x-9)6x+8=7x-637x-6x=63+8x=71
采用迭代法即可.当然用牛顿切线法收敛更快.x5+x-3=0得x=(3-x)^(1/5)令x=1,第一步迭代结果为x=2^(1/5)=1.1487令x=1.1487,第二步迭代结果为x=(3-1.148
X+(X+12)x5分之4=42X+0.8X+9.6=421.8X=32.4X=18X+(X+28)x4分之3=42X+0.75X+21=421.75X=63X=36X+(15+X)x5分之2=69X
17.28-4x=5.6x9.6x=17.28x=17.28/9.6x=1728/960x=1.8
(10000-x)×0.015-0.2x=146.56150-0.015x-0.2x=146.56-0.215x=-3.44x=3.44/0.215=16
2.3X+6.4X=19.329.7X=19.32X=19.32/9.7X=1932/97
[60+x]x5=640[60+x]=128x=128-60x=68
2.8x-0.6=52.8x=5.6x=5.6/2.8x=2
3.54X5-1.7x=13.451.7x=17.7-13.45x=4.25/1.7x=5/2
9x-14x5.5=5.89x=5.8+14x5.59x=82.5x=9.166666667
(x-6)x5/6=5x-6=5×6/5x-6=6x=6+6x=12
再问:我能再问几个间题吗?再问:我能再问几个间题吗?再答:什么再问: 再问:2个再问:2个OK?再答: 再问:上面还有一题要过程再答: 再答:采纳我吧再答:多
5x-3*1.5=6.55x=6.5-4.5x=2/5x=0.4再问:能不能简便一点,我五年级的,看不懂?再答:5x-3*1.5=6.55x-4.5=6.55x=6.5-4.5x=2÷5x=0.4
3X-20=163x=16+203x=36x=12