n^2-7n-50=0

Simple and best practice solution for n^2-7n-50=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^2-7n-50=0 equation:


Simplifying
n2 + -7n + -50 = 0

Reorder the terms:
-50 + -7n + n2 = 0

Solving
-50 + -7n + n2 = 0

Solving for variable 'n'.

Begin completing the square.

Move the constant term to the right:

Add '50' to each side of the equation.
-50 + -7n + 50 + n2 = 0 + 50

Reorder the terms:
-50 + 50 + -7n + n2 = 0 + 50

Combine like terms: -50 + 50 = 0
0 + -7n + n2 = 0 + 50
-7n + n2 = 0 + 50

Combine like terms: 0 + 50 = 50
-7n + n2 = 50

The n term is -7n.  Take half its coefficient (-3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
-7n + 12.25 + n2 = 50 + 12.25

Reorder the terms:
12.25 + -7n + n2 = 50 + 12.25

Combine like terms: 50 + 12.25 = 62.25
12.25 + -7n + n2 = 62.25

Factor a perfect square on the left side:
(n + -3.5)(n + -3.5) = 62.25

Calculate the square root of the right side: 7.889866919

Break this problem into two subproblems by setting 
(n + -3.5) equal to 7.889866919 and -7.889866919.

Subproblem 1

n + -3.5 = 7.889866919 Simplifying n + -3.5 = 7.889866919 Reorder the terms: -3.5 + n = 7.889866919 Solving -3.5 + n = 7.889866919 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + n = 7.889866919 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + n = 7.889866919 + 3.5 n = 7.889866919 + 3.5 Combine like terms: 7.889866919 + 3.5 = 11.389866919 n = 11.389866919 Simplifying n = 11.389866919

Subproblem 2

n + -3.5 = -7.889866919 Simplifying n + -3.5 = -7.889866919 Reorder the terms: -3.5 + n = -7.889866919 Solving -3.5 + n = -7.889866919 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + n = -7.889866919 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + n = -7.889866919 + 3.5 n = -7.889866919 + 3.5 Combine like terms: -7.889866919 + 3.5 = -4.389866919 n = -4.389866919 Simplifying n = -4.389866919

Solution

The solution to the problem is based on the solutions from the subproblems. n = {11.389866919, -4.389866919}

See similar equations:

| -3x-150=12 | | 4=8-2p | | z^2+3iz+5i=0 | | 7u=3u | | 4K+5K-2= | | (4x-1)(2x-1)(3x-2)= | | 3(4w+9)=18 | | z^2+3+iz+5i=0 | | 244(w+1)=24 | | y+7=4(x-5) | | (x-3)(x^2-2)=0 | | (8k+3)+(k+7)= | | 0=8x^2-4x-35 | | y+35+15=-14 | | 10(9+x)=60 | | y+35=-14 | | 5n-(6n-7)=0 | | 3(4w+9)=9 | | -54.0=-9.0C | | 2h+88=66 | | -9.3=Y+737 | | 6k-3=2k+3 | | 9k-(7k-13)= | | 10z^2+5z-15=0 | | 4x+1+7x-20=180 | | 3(2x-3)+7=34 | | 3a+2=71+10 | | 3x+3-5=2x-5 | | x=60+25x | | 30=-3x+6(x+2) | | 6p+9=3 | | 3q^2-5q=8 |

Equations solver categories