(3x+9)(4x+12)=0

Simple and best practice solution for (3x+9)(4x+12)=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+9)(4x+12)=0 equation: 



(3x+9)(4x+12)=0

We multiply parentheses ..

(+12x^2+36x+36x+108)=0

We get rid of parentheses

12x^2+36x+36x+108=0

We add all the numbers together, and all the variables

12x^2+72x+108=0

a = 12; b = 72; c = +108;
Δ = b2-4ac
Δ = 722-4·12·108
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{-72}{24}=-3$

See similar equations:

| 11(m+7)=90 | | 8x-13=2x+3 | | s*5-40=15 | | (x-3+2)=8 | | (x+5)x3=15 | | -7x-50=-3x-70 | | 6-1/3x^2=-19 | | s5-40=15 | | 15-6a=12a+18 | | 38-2c=28 | | (x-74)=0 | | 13x+4=103 | | 3j+3=15-3j= | | (E+5)x3=30 | | -39-x=-8x+70 | | x+56=73 | | 42x-8-15x=19 | | -139-2x=201-12x | | 5w–11=24 | | 5(2x-4)=-(-6x=8) | | 0,32x+5=(10)2 | | 0.2(x-4.5+1.7=9.6 | | 40-m=23 | | 3n—18=9 | | 5n^2=78 | | 3x-1=2x+4(x-1) | | y=15+32 | | 5m=20m= | | 6h+2=3h-13= | | 3x+40=67 | | 8(m-2)=40 | | y−42=10 |

Equations solver categories