1+28/x^2-4-7/x-2=0

Simple and best practice solution for 1+28/x^2-4-7/x-2=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 1+28/x^2-4-7/x-2=0 equation: 


D( x )

x = 0

x^2 = 0

x = 0

x = 0

x^2 = 0

x^2 = 0

1*x^2 = 0 // : 1

x^2 = 0

x = 0

x in (-oo:0) U (0:+oo)

28/(x^2)-(7/x)-4-2+1 = 0

28/(x^2)-7*x^-1-4-2+1 = 0

28*x^-2-7*x^-1-5 = 0

t_1 = x^-1

28*t_1^2-7*t_1^1-5 = 0

28*t_1^2-7*t_1-5 = 0

DELTA = (-7)^2-(-5*4*28)

DELTA = 609

DELTA > 0

t_1 = (609^(1/2)+7)/(2*28) or t_1 = (7-609^(1/2))/(2*28)

t_1 = (609^(1/2)+7)/56 or t_1 = (7-609^(1/2))/56

t_1 = (7-609^(1/2))/56

x^-1-((7-609^(1/2))/56) = 0

1*x^-1 = (7-609^(1/2))/56 // : 1

x^-1 = (7-609^(1/2))/56

-1 < 0

1/(x^1) = (7-609^(1/2))/56 // * x^1

1 = ((7-609^(1/2))/56)*x^1 // : (7-609^(1/2))/56

56*(7-609^(1/2))^-1 = x^1

x = 56*(7-609^(1/2))^-1

t_1 = (609^(1/2)+7)/56

x^-1-((609^(1/2)+7)/56) = 0

1*x^-1 = (609^(1/2)+7)/56 // : 1

x^-1 = (609^(1/2)+7)/56

-1 < 0

1/(x^1) = (609^(1/2)+7)/56 // * x^1

1 = ((609^(1/2)+7)/56)*x^1 // : (609^(1/2)+7)/56

56*(609^(1/2)+7)^-1 = x^1

x = 56*(609^(1/2)+7)^-1

x in { 56*(7-609^(1/2))^-1, 56*(609^(1/2)+7)^-1 }

See similar equations:

| r(4)=4(80-4*4) | | m+6.4=11 | | r(8)=8(80-3*8) | | 0=-28x+28x+84-3(x^2+3x) | | 2=-1/2(x-1)1/2 | | 0.4(x-4)+0.6x=1.4 | | 28-28(3)+3(x+3)=0 | | (6x-10)+(-16x+3)= | | x-8=sqrtx-6 | | 28/x-3-28/x+3=0 | | 3x^2+6=12 | | 15/x+2=15/x-2 | | 4(2)-4(-4)= | | 0=-sinx+4sinx*cosx | | 4-6w=3*(0.5+w/2) | | 5(x^2+4x+4)+34(x+2)-7=0 | | x^2+38x+70=0 | | 6x+3y=4(y-3) | | 10x^2+5x+8=2 | | 5n(6n-4)=0 | | 6x+48= | | m^2+2m+4=0 | | 4x+18+2x=180 | | y^2-18y+36=0 | | 3.67/100 | | -1/5x-7/4=-4/3 | | 3x^2+20v+32=0 | | 15x^3=0 | | 4x^4+19x^2=5 | | -9c+4d/4c+3c-11d/4c | | 2/5-1/3 | | x=4-3.75+y |

Equations solver categories