3x^2+k*x-1=0

Simple and best practice solution for 3x^2+k*x-1=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 3x^2+k*x-1=0 equation:


Simplifying
3x2 + k * x + -1 = 0

Multiply k * x
3x2 + kx + -1 = 0

Reorder the terms:
-1 + kx + 3x2 = 0

Solving
-1 + kx + 3x2 = 0

Solving for variable 'k'.

Move all terms containing k to the left, all other terms to the right.

Add '1' to each side of the equation.
-1 + kx + 1 + 3x2 = 0 + 1

Reorder the terms:
-1 + 1 + kx + 3x2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + kx + 3x2 = 0 + 1
kx + 3x2 = 0 + 1

Combine like terms: 0 + 1 = 1
kx + 3x2 = 1

Add '-3x2' to each side of the equation.
kx + 3x2 + -3x2 = 1 + -3x2

Combine like terms: 3x2 + -3x2 = 0
kx + 0 = 1 + -3x2
kx = 1 + -3x2

Divide each side by 'x'.
k = x-1 + -3x

Simplifying
k = x-1 + -3x

See similar equations:

| 1.2x-3.35=3.25x | | y=-6x+28 | | 40x+28y=2080 | | z/8-5=1 | | x=-16(49)+1130 | | (3s^4)-(2s^3)-(6s^2)+3=0 | | 7y-y^2=6 | | 160-5y=10z | | 7=3(x-2)-(7-6x)-5x | | 8x-7/7 | | 3x/7x | | 12S^2+19S-21=0 | | 3x^2+9=5 | | -5u^4(-2u^3)= | | 40-2x+0.03x^2=40-x+0.01x^2 | | -3x^2-42=54 | | -27-26= | | 2x+39=8x+3 | | 0=1y+-1x | | 8=lnx^2+x | | (-7y-8y)+(8y+2y-8)= | | X+12=81 | | -1=2w-5 | | -1/4x-3/7 | | 15-3y=6y | | p=2262+x^2-107x | | (((x-10)(1-.35))/(15-75))=(((x-10-12)(1-.35))/15) | | (10y+x)-20=x | | lnQ=8.5-0.35ln(45)+0.02(80000) | | 4/logx729=logx729/9 | | 21=2x^2-1(x) | | B=(35-a)/3 |

Equations solver categories