n^2-3n-28=1600

Simple and best practice solution for n^2-3n-28=1600 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^2-3n-28=1600 equation:


Simplifying
n2 + -3n + -28 = 1600

Reorder the terms:
-28 + -3n + n2 = 1600

Solving
-28 + -3n + n2 = 1600

Solving for variable 'n'.

Reorder the terms:
-28 + -1600 + -3n + n2 = 1600 + -1600

Combine like terms: -28 + -1600 = -1628
-1628 + -3n + n2 = 1600 + -1600

Combine like terms: 1600 + -1600 = 0
-1628 + -3n + n2 = 0

Begin completing the square.

Move the constant term to the right:

Add '1628' to each side of the equation.
-1628 + -3n + 1628 + n2 = 0 + 1628

Reorder the terms:
-1628 + 1628 + -3n + n2 = 0 + 1628

Combine like terms: -1628 + 1628 = 0
0 + -3n + n2 = 0 + 1628
-3n + n2 = 0 + 1628

Combine like terms: 0 + 1628 = 1628
-3n + n2 = 1628

The n term is -3n.  Take half its coefficient (-1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
-3n + 2.25 + n2 = 1628 + 2.25

Reorder the terms:
2.25 + -3n + n2 = 1628 + 2.25

Combine like terms: 1628 + 2.25 = 1630.25
2.25 + -3n + n2 = 1630.25

Factor a perfect square on the left side:
(n + -1.5)(n + -1.5) = 1630.25

Calculate the square root of the right side: 40.376354466

Break this problem into two subproblems by setting 
(n + -1.5) equal to 40.376354466 and -40.376354466.

Subproblem 1

n + -1.5 = 40.376354466 Simplifying n + -1.5 = 40.376354466 Reorder the terms: -1.5 + n = 40.376354466 Solving -1.5 + n = 40.376354466 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + n = 40.376354466 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + n = 40.376354466 + 1.5 n = 40.376354466 + 1.5 Combine like terms: 40.376354466 + 1.5 = 41.876354466 n = 41.876354466 Simplifying n = 41.876354466

Subproblem 2

n + -1.5 = -40.376354466 Simplifying n + -1.5 = -40.376354466 Reorder the terms: -1.5 + n = -40.376354466 Solving -1.5 + n = -40.376354466 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + n = -40.376354466 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + n = -40.376354466 + 1.5 n = -40.376354466 + 1.5 Combine like terms: -40.376354466 + 1.5 = -38.876354466 n = -38.876354466 Simplifying n = -38.876354466

Solution

The solution to the problem is based on the solutions from the subproblems. n = {41.876354466, -38.876354466}

See similar equations:

| 4p^2+p=0 | | n-2/1=4/3 | | n-2/1=4/4 | | 1/2x-3=2/3 | | f=2x+3 | | (-23+-3x)(2+-1x)=0 | | n-1/2=3/4 | | 1=h/4-2 | | -4x-2(-3+7)=-10-6x | | 0.5x^2-2=-0.5x+1 | | 2(x-2)=72 | | X-4/3x-5 | | 36=5d+1 | | x-1/2y=2 | | 3g-12=6 | | 26-4x=111-9x | | 100x+6=4x+1 | | x/3=2/15 | | f(x)=136-8x^2 | | (3xy^3)(2x^3y)=0 | | x/3=2/16 | | -x-4y=-9 | | 5x+22=3x+48 | | x+2x+12=1x-6 | | 3+10=-9+4x | | -6+4d=24 | | 90-2x=40 | | 7+3x=85 | | 8(s-3)=-60 | | (3p-4)(5p+9)=0 | | 16u=16+8v | | 2=4-2g |

Equations solver categories