2n^2+12n+9=-7

Simple and best practice solution for 2n^2+12n+9=-7 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 2n^2+12n+9=-7 equation:


Simplifying
2n2 + 12n + 9 = -7

Reorder the terms:
9 + 12n + 2n2 = -7

Solving
9 + 12n + 2n2 = -7

Solving for variable 'n'.

Reorder the terms:
9 + 7 + 12n + 2n2 = -7 + 7

Combine like terms: 9 + 7 = 16
16 + 12n + 2n2 = -7 + 7

Combine like terms: -7 + 7 = 0
16 + 12n + 2n2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(8 + 6n + n2) = 0

Factor a trinomial.
2((4 + n)(2 + n)) = 0

Ignore the factor 2.

Subproblem 1

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

Subproblem 2

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

Solution

n = {-4, -2}

See similar equations:

| 3c-17(12c+6)= | | 45*139= | | 45*140= | | f(x)=10x-8 | | 45*142= | | 45*144= | | m^2-8=-2m | | -7b-3=-3+5 | | 45*145= | | 5m+6=5 | | 45*149= | | -5-4(8-9g)= | | -2(7-y)+2=-4 | | 6(17+5p)= | | 28x+8=0 | | 45*150= | | 45*50= | | -8-5x=-18 | | x^2+90x+89=0 | | (X+6)=7(x-9) | | 3x+-6y=-4 | | -7+x+1=6(3x-9)-4(1+4x) | | 4=-6v+2(v-4) | | 4x-6=3x+19 | | 3(a+5)=3 | | 14s+s= | | 1000=13.99(b-12) | | 8.33= | | -5+2+3z-9z= | | 5c+12=-18 | | 7a+13=13+a | | 5x-3y=500 |

Equations solver categories