28n+4n^2-4000=0

Simple and best practice solution for 28n+4n^2-4000=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 28n+4n^2-4000=0 equation:


Simplifying
28n + 4n2 + -4000 = 0

Reorder the terms:
-4000 + 28n + 4n2 = 0

Solving
-4000 + 28n + 4n2 = 0

Solving for variable 'n'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-1000 + 7n + n2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-1000 + 7n + n2)' equal to zero and attempt to solve: Simplifying -1000 + 7n + n2 = 0 Solving -1000 + 7n + n2 = 0 Begin completing the square. Move the constant term to the right: Add '1000' to each side of the equation. -1000 + 7n + 1000 + n2 = 0 + 1000 Reorder the terms: -1000 + 1000 + 7n + n2 = 0 + 1000 Combine like terms: -1000 + 1000 = 0 0 + 7n + n2 = 0 + 1000 7n + n2 = 0 + 1000 Combine like terms: 0 + 1000 = 1000 7n + n2 = 1000 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 = 1000 + 12.25 Reorder the terms: 12.25 + 7n + n2 = 1000 + 12.25 Combine like terms: 1000 + 12.25 = 1012.25 12.25 + 7n + n2 = 1012.25 Factor a perfect square on the left side: (n + 3.5)(n + 3.5) = 1012.25 Calculate the square root of the right side: 31.81587654 Break this problem into two subproblems by setting (n + 3.5) equal to 31.81587654 and -31.81587654.

Subproblem 1

n + 3.5 = 31.81587654 Simplifying n + 3.5 = 31.81587654 Reorder the terms: 3.5 + n = 31.81587654 Solving 3.5 + n = 31.81587654 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 = 31.81587654 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + n = 31.81587654 + -3.5 n = 31.81587654 + -3.5 Combine like terms: 31.81587654 + -3.5 = 28.31587654 n = 28.31587654 Simplifying n = 28.31587654

Subproblem 2

n + 3.5 = -31.81587654 Simplifying n + 3.5 = -31.81587654 Reorder the terms: 3.5 + n = -31.81587654 Solving 3.5 + n = -31.81587654 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 = -31.81587654 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + n = -31.81587654 + -3.5 n = -31.81587654 + -3.5 Combine like terms: -31.81587654 + -3.5 = -35.31587654 n = -35.31587654 Simplifying n = -35.31587654

Solution

The solution to the problem is based on the solutions from the subproblems. n = {28.31587654, -35.31587654}

Solution

n = {28.31587654, -35.31587654}

See similar equations:

| 5x=(4x-3)2 | | 4(x+4)=-2(x-1) | | 7x-11y=5 | | 11x+3=42-2x | | (584)(584)-(416)(416)= | | 6.7x=5.3x+12.3 | | (y+5)-8=2(y-8) | | 3-(A-9)=12-A | | 0.09*0.03= | | 6(3z+5)=3(5z-2) | | 5x+27=8x | | 3.1+5.3= | | 10y=30-x | | 1/2(2x-3)=6x-4 | | 4(y+5)-8=2(y-8) | | 1/2x-5=7-1/4x | | 4y-x+7=0 | | 3x+7y=109 | | 3cot(x)=5 | | 16+32t^2-16t^3+4t^4=0 | | n=10*82 | | 2.4(x+3)=1.8-0.6x | | 4x-5=3x-37 | | 16x-12y=0 | | 7-4x=x-35 | | 2a+7=5a-23 | | Y^2-3y+2y=0 | | (x-4)(x-4)-(x+1)(x-8)=11 | | a-7=3a-7 | | -0.2y-6=0.667 | | y=x^3+ax^2+bx-64 | | -19=20-6.5x |

Equations solver categories