7/y^2-4-4/y+2=5/y-2

Simple and best practice solution for 7/y^2-4-4/y+2=5/y-2 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/y^2-4-4/y+2=5/y-2 equation: 


D( y )

y = 0

y^2 = 0

y = 0

y = 0

y^2 = 0

y^2 = 0

1*y^2 = 0 // : 1

y^2 = 0

y = 0

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

7/(y^2)-(4/y)-4+2 = 5/y-2 // - 5/y-2

7/(y^2)-(4/y)-(5/y)-4+2+2 = 0

7/(y^2)-4*y^-1-5*y^-1-4+2+2 = 0

7*y^-2-9*y^-1 = 0

t_1 = y^-1

7*t_1^2-9*t_1^1 = 0

7*t_1^2-9*t_1 = 0

DELTA = (-9)^2-(0*4*7)

DELTA = 81

DELTA > 0

t_1 = (81^(1/2)+9)/(2*7) or t_1 = (9-81^(1/2))/(2*7)

t_1 = 9/7 or t_1 = 0

t_1 = 0

y^-1+0 = 0

y^-1 = 0

1*y^-1 = 0 // : 1

y^-1 = 0

y naleu017Cy do O

t_1 = 9/7

y^-1-9/7 = 0

1*y^-1 = 9/7 // : 1

y^-1 = 9/7

-1 < 0

1/(y^1) = 9/7 // * y^1

1 = 9/7*y^1 // : 9/7

7/9 = y^1

y = 7/9

y = 7/9

See similar equations:

| 5x/28-4=x/7+1 | | R^2=8-r^2 | | BAC=0.1 | | 4(4x-7)-2=4(x-4)+58 | | W=1.6t-54.6 | | 7x^2-5x=2 | | y-(-6)=(-7/8)(x-5) | | 3x^2-2x=-1 | | 8x^2-8x=16 | | 28a/4a | | 12(v+4)-4v=2(4v+1)-10 | | -7(v+4)+3v+7=5v+11 | | 1/6(7t-9)=(t+9)/12 | | 4[3-(-6x-6)]=168x+180 | | 12xy+1-6x-2y= | | -8=(x/2)-5 | | 2x+3=540 | | -9n-7=11 | | 3x^2+1=37 | | 12xy+16x-2y= | | 6(-4)-2(-1)+12= | | 6(1)-2(4)+12= | | 5x=(1/2)(16-8y) | | 3x+2y=468 | | 3x^2+7x-18=0 | | 3/8+(-1/8) | | 7a^2=3a | | x+8=4x+16 | | 10x-10=4x | | g(x)=x-2 | | 10x-1=4x | | y-(-7)=(-2/3)(x-7) |

Equations solver categories