4n^2=9n+100

Simple and best practice solution for 4n^2=9n+100 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 4n^2=9n+100 equation:


Simplifying
4n2 = 9n + 100

Reorder the terms:
4n2 = 100 + 9n

Solving
4n2 = 100 + 9n

Solving for variable 'n'.

Reorder the terms:
-100 + -9n + 4n2 = 100 + 9n + -100 + -9n

Reorder the terms:
-100 + -9n + 4n2 = 100 + -100 + 9n + -9n

Combine like terms: 100 + -100 = 0
-100 + -9n + 4n2 = 0 + 9n + -9n
-100 + -9n + 4n2 = 9n + -9n

Combine like terms: 9n + -9n = 0
-100 + -9n + 4n2 = 0

Factor a trinomial.
(-4 + -1n)(25 + -4n) = 0

Subproblem 1

Set the factor '(-4 + -1n)' equal to zero and attempt to solve: Simplifying -4 + -1n = 0 Solving -4 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1n = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1n = 0 + 4 -1n = 0 + 4 Combine like terms: 0 + 4 = 4 -1n = 4 Divide each side by '-1'. n = -4 Simplifying n = -4

Subproblem 2

Set the factor '(25 + -4n)' equal to zero and attempt to solve: Simplifying 25 + -4n = 0 Solving 25 + -4n = 0 Move all terms containing n to the left, all other terms to the right. Add '-25' to each side of the equation. 25 + -25 + -4n = 0 + -25 Combine like terms: 25 + -25 = 0 0 + -4n = 0 + -25 -4n = 0 + -25 Combine like terms: 0 + -25 = -25 -4n = -25 Divide each side by '-4'. n = 6.25 Simplifying n = 6.25

Solution

n = {-4, 6.25}

See similar equations:

| -5m+5=25 | | 7+3a=37 | | -3-2k=-13 | | -3d+4=13 | | -5b+7=12 | | -3a+9=0 | | 3k-9=21 | | 12x^2=11+9x | | 6n-2=58 | | 5n+8=68 | | -6d+9=15 | | 5w+1=51 | | 7b-7=70 | | 5w-7+2(2w+3)=-3(w+5) | | 3-6m=27 | | -6m-9=-39 | | -5t+8=-17 | | 9+2w=21 | | 6d-1=35 | | -9-2d=-29 | | 6-5m=-54 | | 2w+4=12 | | 4k+7=31 | | 4w+6=-30 | | -4k+1=41 | | 10+2d=16 | | 2x+6-3(-3x-2)=3(x-2) | | 9+3m=18 | | 7d+5=47 | | 5x-3=16x+8 | | 1-5k=1 | | 5+2b=1 |

Equations solver categories