3x^2-12=-5x

Simple and best practice solution for 3x^2-12=-5x 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^2-12=-5x equation:


Simplifying
3x2 + -12 = -5x

Reorder the terms:
-12 + 3x2 = -5x

Solving
-12 + 3x2 = -5x

Solving for variable 'x'.

Reorder the terms:
-12 + 5x + 3x2 = -5x + 5x

Combine like terms: -5x + 5x = 0
-12 + 5x + 3x2 = 0

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

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 '(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

Solution

x = {-3, 1.333333333}

See similar equations:

| 3(x+8)-5=16 | | .5=m | | -6x-4(3x-14)=1823 | | 9x+484-132x=512x | | 3-2(3x-1)=-2x-4(x-1) | | 74+74= | | 36x^2-234x-432=0 | | 6(x+8)=54 | | 9x^2-30x-5=0 | | -5x-12=3(x-6) | | -21x+8-6x=-76 | | -21x+8-6x=-76 | | -4=5(3)+b | | 1=2(7.5) | | (2b^2)(a^5)(2b^4a)=4b^6a^6 | | 180=(n-2)180 | | 2x+4=28+x | | 13x=11+y | | 2x^2-25=-5x | | -2y+x=11 | | 3n^2-36n=105 | | 12z^2+17z-5= | | 35-1x=-51 | | 5z^2+17z+14= | | (2x+1)(x-4)=45 | | (x+8)2=7 | | 4-8w-3+2w=-17 | | (2b^2)(a^5)(2b^4a)=4b^6a^5 | | 3*y=9 | | y=4.5x-5 | | y=4.5x-5 | | y=4.5x-5 |

Equations solver categories