X+120%X=44 30%X-18=54
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X+120%X=4430%X-18=54X+120%X=4430%X-18=54X+120%X=4430%X-18=542.2x=44,x=200.3x=54+18=72,x=240x=200.3x=
X+120%X=44 30%X-18=54
X+120%X=44 30%X-18=54
X+120%X=44 30%X-18=54
2.2x=44,x=20
0.3x=54+18=72,x=240
x=20 0.3x=72 x 240
(x+30)*(x-18)=x*x
X+120%X=44 30%X-18=54
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
X-X/12-X/7-X/8-X/4-X/20-X/5-30-120-300=50解方程
用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+.
x^2=(x+30)X(x-18)怎么解
(30-x):(18+x)=(20+x):(32-x)
（X+X)+(X-X)+(X*X)+(X/X)=100
30(x+5)=26x+10x(x+5)
x+2/3x=60 x-3/5x=120 4x+18x=1x+2/3x=60 x-3/5x=120 4x+18x=132!
x+3分之2 x=60 x-5分之3x=120 4x+18x=132x+3分之2 x=60 x-5分之3x=120 4x+18x=132
X+5X=18
证明(x+1)(X+3)(x+5)(x+7)+15=(X+8x)+22(x+8x)+120
x+2/3x=60 x-2/5x=120 4x+18x=132
x-三分之一x-四分之一x(x-三分之一x)=5
x*x*x*x*x=80000?
matlab中a(x)=x^4+3x^3+9x-18 b(x)=x^5-4x^3-18x+7 c(x)=x^7+6x^5+9x^3-5x^2-2 d(x)=x^9-8x^7+6x^5-4x^4+d(x)=x^9-8x^7+6x^5-4x^4+6x^2+3 求e(x)=a(x)*b(x)*c(x)*d(x)
解方程 式子 6-2x+3x=3x-4x+3x+18 6-x+3x=2x-5x+1 2x-1=5x-36-2x+3x=3x-4x+3x+18 6-x+3x=2x-5x+12x-1=5x-3