5n^2-20n-160=0

Simple and best practice solution for 5n^2-20n-160=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 5n^2-20n-160=0 equation:


Simplifying
5n2 + -20n + -160 = 0

Reorder the terms:
-160 + -20n + 5n2 = 0

Solving
-160 + -20n + 5n2 = 0

Solving for variable 'n'.

Factor out the Greatest Common Factor (GCF), '5'.
5(-32 + -4n + n2) = 0

Factor a trinomial.
5((-4 + -1n)(8 + -1n)) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(-4 + -1n)' equal to zero and attempt to solve: Simplifying -4 + -1n = 0 Solving -4 + -1n = 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 + -1n = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1n = 0 + 4 -1n = 0 + 4 Combine like terms: 0 + 4 = 4 -1n = 4 Divide each side by '-1'. n = -4 Simplifying n = -4

Subproblem 2

Set the factor '(8 + -1n)' equal to zero and attempt to solve: Simplifying 8 + -1n = 0 Solving 8 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1n = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1n = 0 + -8 -1n = 0 + -8 Combine like terms: 0 + -8 = -8 -1n = -8 Divide each side by '-1'. n = 8 Simplifying n = 8

Solution

n = {-4, 8}

See similar equations:

| 3x+m=a | | -6f+6=-5f | | 108=-4x+7(8x+8) | | 15=2thirdsy+6 | | -y^2+6=0 | | 7+7x=-138 | | 5(x+8)-15= | | 7x^2+7x-295=0 | | 6y+18-3y-6=18 | | 2a^2-6a-36=0 | | 6y+3+3y-2=18 | | 94=10+6b | | 2+9*7-13= | | 6(x^2+X+2)=0 | | 4n^2-12n-112=0 | | 3(x-5)+8=77 | | 8x-6=2(4x+4) | | Ax+cx=p | | 4x+16x-7=4(5x+9) | | 180=16x(x) | | 2(x+4)+11=5 | | 4y^2+16y+8=15 | | 4(x-4)-3(1-3x)=-6 | | -15+3r=5r+5(5r-3) | | 121x+110=11(11x-10) | | 6(3x)+6=222 | | 8(6x-10)+11=171 | | [-3x(x)]+6x=-1 | | x^2+4x-178=0 | | 39x+47=39x+48 | | 5(1+7m)=215 | | 5n-3=-4+47 |

Equations solver categories