n^2+14n-2=0

Simple and best practice solution for n^2+14n-2=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+14n-2=0 equation:


Simplifying
n2 + 14n + -2 = 0

Reorder the terms:
-2 + 14n + n2 = 0

Solving
-2 + 14n + n2 = 0

Solving for variable 'n'.

Begin completing the square.

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + 14n + 2 + n2 = 0 + 2

Reorder the terms:
-2 + 2 + 14n + n2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + 14n + n2 = 0 + 2
14n + n2 = 0 + 2

Combine like terms: 0 + 2 = 2
14n + n2 = 2

The n term is 14n.  Take half its coefficient (7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
14n + 49 + n2 = 2 + 49

Reorder the terms:
49 + 14n + n2 = 2 + 49

Combine like terms: 2 + 49 = 51
49 + 14n + n2 = 51

Factor a perfect square on the left side:
(n + 7)(n + 7) = 51

Calculate the square root of the right side: 7.141428429

Break this problem into two subproblems by setting 
(n + 7) equal to 7.141428429 and -7.141428429.

Subproblem 1

n + 7 = 7.141428429 Simplifying n + 7 = 7.141428429 Reorder the terms: 7 + n = 7.141428429 Solving 7 + n = 7.141428429 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + n = 7.141428429 + -7 Combine like terms: 7 + -7 = 0 0 + n = 7.141428429 + -7 n = 7.141428429 + -7 Combine like terms: 7.141428429 + -7 = 0.141428429 n = 0.141428429 Simplifying n = 0.141428429

Subproblem 2

n + 7 = -7.141428429 Simplifying n + 7 = -7.141428429 Reorder the terms: 7 + n = -7.141428429 Solving 7 + n = -7.141428429 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + n = -7.141428429 + -7 Combine like terms: 7 + -7 = 0 0 + n = -7.141428429 + -7 n = -7.141428429 + -7 Combine like terms: -7.141428429 + -7 = -14.141428429 n = -14.141428429 Simplifying n = -14.141428429

Solution

The solution to the problem is based on the solutions from the subproblems. n = {0.141428429, -14.141428429}

See similar equations:

| F(3)-9=5(3-9)2+4(3-9) | | b^2-12b-50=0 | | 3(x-1)=90/10 | | r^2+14r+24=0 | | 0=64(3x^2+16) | | (15-45)=(15-45) | | f(x)=(20ln(x)) | | x^4+14x^3+4x^2+16x=0 | | 180/20y | | 2(7x+6)+3x=63 | | -7/4^2 | | Logs=-7.3 | | 1.72x=x+3546 | | 16x^3-96x^2+188x-95=0 | | x-1=y-19 | | 6x-5/3 | | b+b=(1+b) | | 12x^2-48x+47=0 | | 6x^2+x^3=0 | | 3.1x+5.16=-3.52 | | 2x/4-5=2/6 | | (1/6)-(3/4) | | 0=-5t^2+20t+40 | | 20/(10-x)^2=0 | | .9j+2.3j=-6.4 | | 18/30-1/6 | | (x-3)*(x-3)+2x+9=9*9+3x+2 | | X^2-7x=65 | | x=-3x^2+21x+50 | | .25x^2+x-10=0 | | 6.2x+3=4.2x-1 | | .5x^2-x-10=0 |

Equations solver categories