n^2+5n-126=0

Simple and best practice solution for n^2+5n-126=0 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 n^2+5n-126=0 equation:


Simplifying
n2 + 5n + -126 = 0

Reorder the terms:
-126 + 5n + n2 = 0

Solving
-126 + 5n + n2 = 0

Solving for variable 'n'.

Factor a trinomial.
(-14 + -1n)(9 + -1n) = 0

Subproblem 1

Set the factor '(-14 + -1n)' equal to zero and attempt to solve: Simplifying -14 + -1n = 0 Solving -14 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + -1n = 0 + 14 Combine like terms: -14 + 14 = 0 0 + -1n = 0 + 14 -1n = 0 + 14 Combine like terms: 0 + 14 = 14 -1n = 14 Divide each side by '-1'. n = -14 Simplifying n = -14

Subproblem 2

Set the factor '(9 + -1n)' equal to zero and attempt to solve: Simplifying 9 + -1n = 0 Solving 9 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1n = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1n = 0 + -9 -1n = 0 + -9 Combine like terms: 0 + -9 = -9 -1n = -9 Divide each side by '-1'. n = 9 Simplifying n = 9

Solution

n = {-14, 9}

See similar equations:

| 4=63-z | | 31=b+27 | | 10(.25+x)=125 | | -2(3h+6)+11-4h= | | s+8=26 | | -6-3x=15 | | 5b-8-3b-17= | | V^2+14v-9=0 | | 7x-y=36 | | X+Y=170 | | 13x-5(2x-4)+7= | | 4(3p-1)+7-8p= | | -4x+5y=11 | | 4/5÷1/5= | | X/4-=z | | Csquared=3c | | 2n^2+3n-7=2 | | x+2(x+1)=22+x+2 | | 5x-8+8=0 | | N=3n | | (9+i)(5-3i)= | | (3x-3)(x-6)=-14x+16 | | 5x-7x=8 | | ln(3x-16)=4 | | 60x+18y=685 | | X^3-(4x^2)+(2x)=0 | | y-(4/5)=6(3/4) | | -1x-12= | | (x-9)(x-3)=-9 | | 2x+19=x+19 | | 3/4×36= | | 3x^2-48x=-4x^2-7x-30 |

Equations solver categories