7/x^2-10/x-8=0

Simple and best practice solution for 7/x^2-10/x-8=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 7/x^2-10/x-8=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)

7/(x^2)-(10/x)-8 = 0

7/(x^2)-10*x^-1-8 = 0

7*x^-2-10*x^-1-8 = 0

t_1 = x^-1

7*t_1^2-10*t_1^1-8 = 0

7*t_1^2-10*t_1-8 = 0

DELTA = (-10)^2-(-8*4*7)

DELTA = 324

DELTA > 0

t_1 = (324^(1/2)+10)/(2*7) or t_1 = (10-324^(1/2))/(2*7)

t_1 = 2 or t_1 = -4/7

t_1 = -4/7

x^-1+4/7 = 0

1*x^-1 = -4/7 // : 1

x^-1 = -4/7

-1 < 0

1/(x^1) = -4/7 // * x^1

1 = -4/7*x^1 // : -4/7

-7/4 = x^1

x = -7/4

t_1 = 2

x^-1-2 = 0

1*x^-1 = 2 // : 1

x^-1 = 2

-1 < 0

1/(x^1) = 2 // * x^1

1 = 2*x^1 // : 2

1/2 = x^1

x = 1/2

x in { -7/4, 1/2 }

See similar equations:

| g(0)=3(0)-2x | | 3x+2=5.2 | | 3+4(T+2)=2T-3(T-4) | | 3x+5=5i | | -10k=9k-40 | | 4(x-2)+3=3x-5+x | | y=x^4-3x^3+2x^2-7x-11 | | 2x-15=6x-52 | | 55(x-69)=x-77 | | 3(-11x-5)= | | -9p-3(2-5p)=2(p-2)-22 | | (1/2y-50)(3/5y+10) | | 3/10y^2-50+10 | | 42c+42=9 | | 4x-26=64+2x | | 0.6(x+0.6)=0.8(x-4.8) | | n/-4-16=-13 | | 5x-1=84 | | 5(x-2)-3(x+7)=19 | | 4x+9=9x-90000 | | n/-4-16=-3 | | 1/3x=12+12x | | 10x+9=7x+9 | | 6x+5=3x+41 | | 8z-14+3z=19 | | 0=266(x)-(2000+46x+2x^2) | | 2a+4ab=0 | | 25b-100=5 | | 0=550(x)-(10000+30x+x^2) | | n/3-10=6 | | 6(7+x)=-6 | | 800(.30)+3x=(800+x)*1.20 |

Equations solver categories