n^2+5n-3=0

Simple and best practice solution for n^2+5n-3=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-3=0 equation:


Simplifying
n2 + 5n + -3 = 0

Reorder the terms:
-3 + 5n + n2 = 0

Solving
-3 + 5n + n2 = 0

Solving for variable 'n'.

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + 5n + 3 + n2 = 0 + 3

Reorder the terms:
-3 + 3 + 5n + n2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 5n + n2 = 0 + 3
5n + n2 = 0 + 3

Combine like terms: 0 + 3 = 3
5n + n2 = 3

The n term is 5n.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5n + 6.25 + n2 = 3 + 6.25

Reorder the terms:
6.25 + 5n + n2 = 3 + 6.25

Combine like terms: 3 + 6.25 = 9.25
6.25 + 5n + n2 = 9.25

Factor a perfect square on the left side:
(n + 2.5)(n + 2.5) = 9.25

Calculate the square root of the right side: 3.041381265

Break this problem into two subproblems by setting 
(n + 2.5) equal to 3.041381265 and -3.041381265.

Subproblem 1

n + 2.5 = 3.041381265 Simplifying n + 2.5 = 3.041381265 Reorder the terms: 2.5 + n = 3.041381265 Solving 2.5 + n = 3.041381265 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + n = 3.041381265 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + n = 3.041381265 + -2.5 n = 3.041381265 + -2.5 Combine like terms: 3.041381265 + -2.5 = 0.541381265 n = 0.541381265 Simplifying n = 0.541381265

Subproblem 2

n + 2.5 = -3.041381265 Simplifying n + 2.5 = -3.041381265 Reorder the terms: 2.5 + n = -3.041381265 Solving 2.5 + n = -3.041381265 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + n = -3.041381265 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + n = -3.041381265 + -2.5 n = -3.041381265 + -2.5 Combine like terms: -3.041381265 + -2.5 = -5.541381265 n = -5.541381265 Simplifying n = -5.541381265

Solution

The solution to the problem is based on the solutions from the subproblems. n = {0.541381265, -5.541381265}

See similar equations:

| X-5=-25 | | 10+12=3x-14x | | n^2-8n+17=0 | | -11=m+21 | | 5x+7x-7=7-2x | | 5q=36+4 | | x^2-4x-60=0 | | Ln(x+2)+Ln(x-2)=1 | | 7+3t=9t-5 | | 7x+13=-29 | | 3t^2=54 | | 12t-24+5t=48-t | | R=x(A+B) | | 4(2t-3)+3t=24-t | | 8t-12+3t=24-t | | -7x=140 | | 11+z=-72 | | 16-a=-48 | | 5+0.16666666666666666z=5 | | 2d+2=10 | | -2y=-44 | | 0.3333333333333333x=8 | | -s=-92 | | -7x^2-2x+1= | | 8+0.2z=-3 | | x^3+8x^2+4x+16= | | 0.3333333333333333a=5 | | 4x^3-2x^2-4x-1=0 | | 12x^2+3x-14=0 | | 122=v-22 | | 235=-15t^2+120t+10 | | 9-7x=129-42x |

Equations solver categories