Mathematics
语言:
中文
Language:English
==equ==
Unary equation
Multivariate equation
==cal==
Solution inequality
Mathematical calculation
Fractional calculation
Mathematical statistics
Resolving prime factor
Fraction and Decimal Interactions
Lenders ToolBox
==LiAl==
Determinant
Matrix multiplication
Inverse matrix
==der==
Derivative function
==img==
Function image
==que==
Q&A
current location:Solving equations online >
On line Solution of Monovariate Equation
> The history of univariate equation calculation
20×30-(20x+30x-x²)=551
20×30-(20x+30x-x2)=551
40(1-x)²=32.4
40(1-x)=32.4
40(1-x)2=32.4
80-80x-32.4=0
x²-70x+1200=0
x2+2x=0
3*x*x*x*x+6*x*x*x-3*x+1=0
r*r/100/14*77=0.366*74*24*lg(r/0.175)
r*r/100/13.40*77=0.366*72*24*lg(r/0.175)
r*r/100/7.0*43=0.366*76*24*lg(r/0.175)
r*r/100/7.20*43=0.366*76*24*lg(r/0.175)
r*r/100/17.20*43=0.366*76*24*lg(r/0.175)
r*r/100/13.20*77=0.366*77*24*lg(r/0.175)
r*r/100/23.20*77=0.366*77*24*lg(r/0.175)
r*r/100/12.76*117=0.366*74*24*lg(r/0.175)
r*r/100/14.50*77=0.366*79*24*lg(r/0.175)
r*r/100/12.76*117=0.366*80*24*lg(r/0.175)
r*r/100/18*117=0.366*80*24*lg(r/0.175)
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