4x^2+9=-12x

Simple and best practice solution for 4x^2+9=-12x 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 4x^2+9=-12x equation:


Simplifying
4x2 + 9 = -12x

Reorder the terms:
9 + 4x2 = -12x

Solving
9 + 4x2 = -12x

Solving for variable 'x'.

Reorder the terms:
9 + 12x + 4x2 = -12x + 12x

Combine like terms: -12x + 12x = 0
9 + 12x + 4x2 = 0

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

Subproblem 1

Set the factor '(3 + 2x)' equal to zero and attempt to solve: Simplifying 3 + 2x = 0 Solving 3 + 2x = 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 + 2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2x = 0 + -3 2x = 0 + -3 Combine like terms: 0 + -3 = -3 2x = -3 Divide each side by '2'. x = -1.5 Simplifying x = -1.5

Subproblem 2

Set the factor '(3 + 2x)' equal to zero and attempt to solve: Simplifying 3 + 2x = 0 Solving 3 + 2x = 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 + 2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2x = 0 + -3 2x = 0 + -3 Combine like terms: 0 + -3 = -3 2x = -3 Divide each side by '2'. x = -1.5 Simplifying x = -1.5

Solution

x = {-1.5, -1.5}

See similar equations:

| 5z=18-38 | | 7(x-2)=5x-6 | | 2x^2=6-x | | n-5=16 | | k^2-3k-1=0 | | 12=9t-11t | | -30x-25=9x^2 | | 5x^2=-13x+6 | | 5.2q-4.6-7.1q=-0.9q-4.6 | | 3x^3-18x^2-9x+132=0 | | x-3=2-x | | 3(x-1)=3x+1 | | 2m^2n(m^3-n)-5m^2n(3m^3+4n)= | | w^2+5w-6=0 | | m^2+8m+7=0 | | 2x=2x | | v^2-v-20=0 | | m^2-6m-1=0 | | 2x+7=29 | | 20+34=27+i | | u^2+7u+10=0 | | X+2-3x+9=10 | | 2y^2-6y-8=0 | | -6=2x-4 | | 26=.05x+2.60 | | 3(2-z)=7z+12-4z | | 5(x+1)=-10 | | 3y+10=15 | | 3(5x-2)=16 | | A+3=7.5 | | -12=5x-7 | | -7=4x-3 |

Equations solver categories