3*x^2+6*x-9=0

Simple and best practice solution for 3*x^2+6*x-9=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 3*x^2+6*x-9=0 equation:


Simplifying
3x2 + 6x + -9 = 0

Reorder the terms:
-9 + 6x + 3x2 = 0

Solving
-9 + 6x + 3x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-3 + 2x + x2) = 0

Factor a trinomial.
3((-3 + -1x)(1 + -1x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-3 + -1x)' equal to zero and attempt to solve: Simplifying -3 + -1x = 0 Solving -3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1x = 0 + 3 -1x = 0 + 3 Combine like terms: 0 + 3 = 3 -1x = 3 Divide each side by '-1'. x = -3 Simplifying x = -3

Subproblem 2

Set the factor '(1 + -1x)' equal to zero and attempt to solve: Simplifying 1 + -1x = 0 Solving 1 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1x = 0 + -1 -1x = 0 + -1 Combine like terms: 0 + -1 = -1 -1x = -1 Divide each side by '-1'. x = 1 Simplifying x = 1

Solution

x = {-3, 1}

See similar equations:

| 5-0*3-9/3= | | (-15)-(-18)= | | -7k+2=-19 | | 2p-18whenp=4 | | x(2+x)=0 | | 12x*12-1=143x | | x^2+18x+19=8x+3 | | x^2+12x+5=5x-5 | | 5+6+8=88 | | xsquare+3x+4=0 | | 12Xforx=7 | | x^3-y^2-x^2+2y+3x=0 | | 40x+10(1.5x)=1050 | | (2x+10)(-3x-21)=0 | | 26=10-8a | | 6x-15=3(2x+5) | | 19=5p+4 | | 14x-(9x+3)=17 | | 135x+168y=150 | | 13+6z=7 | | 16/0,5= | | 2xy+y=14 | | 2x^2=3xy+2y^2-7 | | 2x^2=3xy-2y^2-7 | | 2(x+1)-3(x-2)=4-3(x+1) | | 6x^2-3(k-1)x+2=0 | | (3+2)2-5*3+23= | | 46x+3=1 | | 8g=36 | | 7f=25 | | 6e=39 | | 5d=22 |

Equations solver categories