3x^2+x+8=12

Simple and best practice solution for 3x^2+x+8=12 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+x+8=12 equation:


Simplifying
3x2 + x + 8 = 12

Reorder the terms:
8 + x + 3x2 = 12

Solving
8 + x + 3x2 = 12

Solving for variable 'x'.

Reorder the terms:
8 + -12 + x + 3x2 = 12 + -12

Combine like terms: 8 + -12 = -4
-4 + x + 3x2 = 12 + -12

Combine like terms: 12 + -12 = 0
-4 + x + 3x2 = 0

Factor a trinomial.
(-4 + -3x)(1 + -1x) = 0

Subproblem 1

Set the factor '(-4 + -3x)' equal to zero and attempt to solve: Simplifying -4 + -3x = 0 Solving -4 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -3x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -3x = 0 + 4 -3x = 0 + 4 Combine like terms: 0 + 4 = 4 -3x = 4 Divide each side by '-3'. x = -1.333333333 Simplifying x = -1.333333333

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 = {-1.333333333, 1}

See similar equations:

| -10y+45x= | | 13=22-3h | | 20-2x=50 | | x/20=.4 | | X=-3+-1(-6) | | 4m-5=-9 | | -2k+2=20 | | 9=2v-5 | | 108=15r-6r | | 25+3.5m=56.5 | | -5+2(3-4x)=45-10x | | -8x+-2= | | X=-1+-2(-2) | | 6x+4=5(3x+18) | | 6n^2-30n-144=0 | | 7=16-t | | 10-4/2*3=24 | | 7x-3x-8=4 | | 2/3(x-6)=5n-43 | | 2(3x-8)=36 | | 6x+1+4x-6=180 | | 7x+5x-34=51-5x | | 21=24-t | | 29=x+3x+5 | | 8(4k-4)=3k-32 | | 7x-23=23 | | 72=4p+8p | | -9m+2m+11+6=-11 | | -21x-14y= | | 10-4/2*3=1 | | -64=-4 | | 90+6x+1+4x-6=180 |

Equations solver categories