3x^2+x-12=2

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


Simplifying
3x2 + x + -12 = 2

Reorder the terms:
-12 + x + 3x2 = 2

Solving
-12 + x + 3x2 = 2

Solving for variable 'x'.

Reorder the terms:
-12 + -2 + x + 3x2 = 2 + -2

Combine like terms: -12 + -2 = -14
-14 + x + 3x2 = 2 + -2

Combine like terms: 2 + -2 = 0
-14 + x + 3x2 = 0

Factor a trinomial.
(-7 + -3x)(2 + -1x) = 0

Subproblem 1

Set the factor '(-7 + -3x)' equal to zero and attempt to solve: Simplifying -7 + -3x = 0 Solving -7 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -3x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -3x = 0 + 7 -3x = 0 + 7 Combine like terms: 0 + 7 = 7 -3x = 7 Divide each side by '-3'. x = -2.333333333 Simplifying x = -2.333333333

Subproblem 2

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {-2.333333333, 2}

See similar equations:

| 3(6+2n)=12 | | 9-6x=3x-4 | | 8d+5d+4= | | 5(2c-1)-6=7c+7 | | -5x+8=3-2x | | 2-2=15x+6x | | Pq-3pq+4rg-q= | | 260=.5(x)(x-6) | | 4xy-2y-3x-y= | | 3ab+2ab-4ab= | | -5x+3=3x-5 | | 120/480=18/x | | 5s-10=20 | | 1+cos(12x)=2cos^2(6x) | | 3x-3=-x+4 | | 3(2x-y)+4(x+y)= | | y^2+4y-20= | | 5j+3=18 | | 3x-3=-x+7 | | 3x-3=3x+4 | | (4x-y)-(3x+y)= | | log[3](x^3y^5/6) | | log[3]9x^3y^5/6) | | 1.5b=12 | | 4d+7=12 | | 2x=84-10x | | 6x+9=-3x+7 | | 4d+5=12 | | x^2-30x=161 | | 5x=63-2 | | 4d+3=12 | | 4x=66-7x |

Equations solver categories