n^2-15n=2000

Simple and best practice solution for n^2-15n=2000 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^2-15n=2000 equation:


Simplifying
n2 + -15n = 2000

Reorder the terms:
-15n + n2 = 2000

Solving
-15n + n2 = 2000

Solving for variable 'n'.

Reorder the terms:
-2000 + -15n + n2 = 2000 + -2000

Combine like terms: 2000 + -2000 = 0
-2000 + -15n + n2 = 0

Begin completing the square.

Move the constant term to the right:

Add '2000' to each side of the equation.
-2000 + -15n + 2000 + n2 = 0 + 2000

Reorder the terms:
-2000 + 2000 + -15n + n2 = 0 + 2000

Combine like terms: -2000 + 2000 = 0
0 + -15n + n2 = 0 + 2000
-15n + n2 = 0 + 2000

Combine like terms: 0 + 2000 = 2000
-15n + n2 = 2000

The n term is -15n.  Take half its coefficient (-7.5).
Square it (56.25) and add it to both sides.

Add '56.25' to each side of the equation.
-15n + 56.25 + n2 = 2000 + 56.25

Reorder the terms:
56.25 + -15n + n2 = 2000 + 56.25

Combine like terms: 2000 + 56.25 = 2056.25
56.25 + -15n + n2 = 2056.25

Factor a perfect square on the left side:
(n + -7.5)(n + -7.5) = 2056.25

Calculate the square root of the right side: 45.345892868

Break this problem into two subproblems by setting 
(n + -7.5) equal to 45.345892868 and -45.345892868.

Subproblem 1

n + -7.5 = 45.345892868 Simplifying n + -7.5 = 45.345892868 Reorder the terms: -7.5 + n = 45.345892868 Solving -7.5 + n = 45.345892868 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + n = 45.345892868 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + n = 45.345892868 + 7.5 n = 45.345892868 + 7.5 Combine like terms: 45.345892868 + 7.5 = 52.845892868 n = 52.845892868 Simplifying n = 52.845892868

Subproblem 2

n + -7.5 = -45.345892868 Simplifying n + -7.5 = -45.345892868 Reorder the terms: -7.5 + n = -45.345892868 Solving -7.5 + n = -45.345892868 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '7.5' to each side of the equation. -7.5 + 7.5 + n = -45.345892868 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + n = -45.345892868 + 7.5 n = -45.345892868 + 7.5 Combine like terms: -45.345892868 + 7.5 = -37.845892868 n = -37.845892868 Simplifying n = -37.845892868

Solution

The solution to the problem is based on the solutions from the subproblems. n = {52.845892868, -37.845892868}

See similar equations:

| -4x+20=4(x-3) | | 7x+22=A | | -5/3=-1/7w-5/2 | | 9x-24=24 | | 10/3x=1 | | 15x-10=(x+1) | | 15p^2+8=-80 | | -2(-3x-8)=4x-16 | | 4=3y+2x | | A=2(10)(9)+2(6)(9)+(10)(6) | | 5x-1=10x-1 | | 6(x-3)+10=2(x-4) | | 2x^2+6xy+5y^2+2=0 | | 10p=5/6 | | -6/7x=21/3 | | -2/3=1/2u-9/5 | | 23x+5y=-11 | | (5y-3)=(3y+27) | | 36=3p-7p | | 8.4=28+1.4y | | (9r-6)=(8r+3) | | 5+2(x+1)-3=-2(x-3)4x | | 5+2(x+1)-3=-2(x+-3)+4x | | 7x+19=190 | | 7-7x-4=-7+3x-10 | | 14x+2=9x-3 | | g(2x+10)=2x+6 | | 7.238*125.5413= | | sin(2x+30)=-cos(2x+30) | | 2a+b=56 | | Sec^2(x)-8cos(x)=0 | | 199[x-(-8)]=0 |

Equations solver categories