4x-2/x=-7

Simple and best practice solution for 4x-2/x=-7 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 4x-2/x=-7 equation: 


D( x )

x = 0

x = 0

x = 0

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

4*x-(2/x) = -7 // + 7

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

4*x-2*x^-1+7 = 0

4*x^1-2*x^-1+7*x^0 = 0

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

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

x^1

4*x^2+7*x-2 = 0

4*x^2+7*x-2 = 0

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

DELTA = 81

DELTA > 0

x = (81^(1/2)-7)/(2*4) or x = (-81^(1/2)-7)/(2*4)

x = 1/4 or x = -2

x in { -2, 1/4} 

x in { -2, 1/4 }

See similar equations:

| 750.00-50.00h= | | -4m-1=1+4m | | 750-50= | | 750.00-50.00h-185.00+35.00h= | | -185.00+35.00h= | | 6y-2(y+4)=16 | | 750-50h= | | 3y(-y+2)=(y-2)(y+2)-(2y+3)(2y-1) | | 1.62y=3.16(y-8.62) | | 2+48x^2+32x^4=y | | (2x+300)/3+39=(5x-150)/4+(8x+120)/4 | | 4x^2+31x+22=0 | | (4x^2+31x+22)/(x+7) | | 9a^13b^20=0 | | 1/2(n-6)=19 | | 8x-12=-4x+12 | | log(x)+log(8)=2 | | 63=0.5(2x)(2x+4) | | y=pi/(7x^2-8) | | 8x-12=4x+12 | | 1/3x=92 | | x+9+x+3+x^2-3x+3x-3=57 | | (x+3)(2x-2)=(2x+3)(x+1) | | 18-2x=x-25 | | y=(2x-5)(5x^3-x^2+1) | | ln(x+3)-1=0 | | -3y+4+5y= | | 1000(n+20)=100 | | 700(n+20)=100 | | 0.15x=63 | | 500(n+20)=100 | | 4-3x/7-x+3/7=x+8 |

Equations solver categories