7+12x+5x^2=0

Simple and best practice solution for 7+12x+5x^2=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+12x+5x^2=0 equation: 



7+12x+5x^2=0

a = 5; b = 12; c = +7;
Δ = b2-4ac
Δ = 122-4·5·7
Δ = 4
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{4}=2$


$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(12)-2}{2*5}=\frac{-14}{10}
=-1+2/5
$


$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(12)+2}{2*5}=\frac{-10}{10}
=-1
$

See similar equations:

| X=4+√3x+6 | | 4×(2y-6)=4y-4 | | 10x-2=10000 | | y+3y+16=0 | | 44x13=572 | | 3/4n+5=1/3 | | 3/4n+5=1/4 | | 5(4x-3)^2=80x^2+120x+40 | | X+3y=99 | | 1.6x=32 | | 7-3(x-1)=1/5(10x-25) | | -4=-3(x+3) | | .05n+.25=3.0 | | (5x+13)=117 | | `2x+10=4x+7` | | 0.1=p/1.45 | | Y=-1700x+51000 | | √21^x=81 | | 12x+7=5-3x+17 | | 3y+6.5=10.5+2.5y | | 27^3x-2/243=81^3x-7 | | x+15-5x-17=180 | | x+15+5x-17=180 | | 4x-(80-x)=180 | | 4x(x+9)=(3x-2)(x+9) | | 4x^2+10=8x | | -3g+4=13 | | 16=3v+7 | | 475+0.15x=487 | | 9-2h=19 | | -m+-10=3 | | -2=-20+2r |

Equations solver categories