x+8/5x^2-12x-9

Simple and best practice solution for x+8/5x^2-12x-9 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 x+8/5x^2-12x-9 equation: 


x in (-oo:+oo)

(8/5)*x^2+x-(12*x)-9 = 0

(8/5)*x^2+x-12*x-9 = 0

8/5*x^2-11*x-9 = 0

DELTA = (-11)^2-(-9*8/5*4)

DELTA = 893/5

DELTA > 0

x = ((893/5)^(1/2)+11)/(8/5*2) or x = (11-(893/5)^(1/2))/(8/5*2)

x = 5/16*((893/5)^(1/2)+11) or x = 5/16*(11-(893/5)^(1/2))

x in { 5/16*(11-(893/5)^(1/2)), 5/16*((893/5)^(1/2)+11) }

See similar equations:

| 9(t-5)+5t=7(2t+3)-9 | | H=16t^2+21t+6 | | 7x^2-2x-4=0 | | -3x^2-8x+3=0 | | -x=-55/7 | | -11x+10=-10x | | 18-x=11 | | (a+10)(a-8)= | | 7y-3(y-1)+8-y= | | 525.00+.21m=585+.13m | | 585+.31m= | | 525+0.21m= | | .2(x+80)+.2x=20 | | (x-8/5)-(2x+4/20)=4-x/10 | | (y-7)-(y+9)=8y | | (y-7)-(y+9)=8 | | 15x+15=15x-15 | | 4+5y-2=9y+4-6y | | 17(t-4)+4t=7(3t+3)-8 | | .75t=-12 | | 7x^2=-10x | | (u^4-3u^2+4)/(3(u^1/3)) | | (u^4-3u^2+4)/(3u^1/3) | | -8=5y+2 | | -3b+4=7 | | -5=-3b+4 | | 24(x-1)=-6(4-x)+18 | | -.4z=-2.4 | | 4(x+4)=4(x+8) | | 11r+(-3)=9r-5 | | 2(7+2x)=2(9+3x) | | x-8/5-2x+4/10=4-x/10 |

Equations solver categories