x(3x+5)=-2

Simple and best practice solution for x(3x+5)=-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 x(3x+5)=-2 equation:



x(3x+5)=-2
We move all terms to the left:
x(3x+5)-(-2)=0
We add all the numbers together, and all the variables
x(3x+5)+2=0
We multiply parentheses
3x^2+5x+2=0
a = 3; b = 5; c = +2;
Δ = b2-4ac
Δ = 52-4·3·2
Δ = 1
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1}=1$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(5)-1}{2*3}=\frac{-6}{6} =-1 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(5)+1}{2*3}=\frac{-4}{6} =-2/3 $

See similar equations:

| V=6(18-9)+(2+v) | | 16.95m=22.95m | | x16-9=-8 | | 35-x/5=x2 | | 7–2t=3 | | 5(2x+1=10x | | 3(v+4)^2=125 | | (3x-2)/8+(2-x)/4=1/2 | | (s^2-1)(s+2)=0 | | 2(1/9+1)=-3(2q-1)+4(2q+1) | | 7(m+9)=84 | | 1-x/2=2 | | a/6=10=3 | | (s+1)(s-1)(s+2)=0 | | -3x+25=-74 | | -2+x/6=-5 | | .5×^2-x-12=0 | | 9(4x-6)=26 | | 50=29-3(x-2) | | C=2.18w+14.3 | | 1-a/5=-3 | | 93(67+y)=67y+93 | | (2f-1)-(6+f)=0 | | (s+1)(s-1)=0 | | 700-30w=400 | | 9=4-8k | | 5n-6nn=7 | | 5(4x-9)-2=5(x-2)+38 | | 1.77x-0.5-x=0 | | 10x^2+60=0 | | v/2+-(9)=0 | | 3+4w=8 |

Equations solver categories