4n^2+6n+9=9n^2+4n+4

Simple and best practice solution for 4n^2+6n+9=9n^2+4n+4 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+6n+9=9n^2+4n+4 equation:


Simplifying
4n2 + 6n + 9 = 9n2 + 4n + 4

Reorder the terms:
9 + 6n + 4n2 = 9n2 + 4n + 4

Reorder the terms:
9 + 6n + 4n2 = 4 + 4n + 9n2

Solving
9 + 6n + 4n2 = 4 + 4n + 9n2

Solving for variable 'n'.

Reorder the terms:
9 + -4 + 6n + -4n + 4n2 + -9n2 = 4 + 4n + 9n2 + -4 + -4n + -9n2

Combine like terms: 9 + -4 = 5
5 + 6n + -4n + 4n2 + -9n2 = 4 + 4n + 9n2 + -4 + -4n + -9n2

Combine like terms: 6n + -4n = 2n
5 + 2n + 4n2 + -9n2 = 4 + 4n + 9n2 + -4 + -4n + -9n2

Combine like terms: 4n2 + -9n2 = -5n2
5 + 2n + -5n2 = 4 + 4n + 9n2 + -4 + -4n + -9n2

Reorder the terms:
5 + 2n + -5n2 = 4 + -4 + 4n + -4n + 9n2 + -9n2

Combine like terms: 4 + -4 = 0
5 + 2n + -5n2 = 0 + 4n + -4n + 9n2 + -9n2
5 + 2n + -5n2 = 4n + -4n + 9n2 + -9n2

Combine like terms: 4n + -4n = 0
5 + 2n + -5n2 = 0 + 9n2 + -9n2
5 + 2n + -5n2 = 9n2 + -9n2

Combine like terms: 9n2 + -9n2 = 0
5 + 2n + -5n2 = 0

Begin completing the square.  Divide all terms by
-5 the coefficient of the squared term: 

Divide each side by '-5'.
-1 + -0.4n + n2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -0.4n + 1 + n2 = 0 + 1

Reorder the terms:
-1 + 1 + -0.4n + n2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -0.4n + n2 = 0 + 1
-0.4n + n2 = 0 + 1

Combine like terms: 0 + 1 = 1
-0.4n + n2 = 1

The n term is -0.4n.  Take half its coefficient (-0.2).
Square it (0.04) and add it to both sides.

Add '0.04' to each side of the equation.
-0.4n + 0.04 + n2 = 1 + 0.04

Reorder the terms:
0.04 + -0.4n + n2 = 1 + 0.04

Combine like terms: 1 + 0.04 = 1.04
0.04 + -0.4n + n2 = 1.04

Factor a perfect square on the left side:
(n + -0.2)(n + -0.2) = 1.04

Calculate the square root of the right side: 1.019803903

Break this problem into two subproblems by setting 
(n + -0.2) equal to 1.019803903 and -1.019803903.

Subproblem 1

n + -0.2 = 1.019803903 Simplifying n + -0.2 = 1.019803903 Reorder the terms: -0.2 + n = 1.019803903 Solving -0.2 + n = 1.019803903 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.2' to each side of the equation. -0.2 + 0.2 + n = 1.019803903 + 0.2 Combine like terms: -0.2 + 0.2 = 0.0 0.0 + n = 1.019803903 + 0.2 n = 1.019803903 + 0.2 Combine like terms: 1.019803903 + 0.2 = 1.219803903 n = 1.219803903 Simplifying n = 1.219803903

Subproblem 2

n + -0.2 = -1.019803903 Simplifying n + -0.2 = -1.019803903 Reorder the terms: -0.2 + n = -1.019803903 Solving -0.2 + n = -1.019803903 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.2' to each side of the equation. -0.2 + 0.2 + n = -1.019803903 + 0.2 Combine like terms: -0.2 + 0.2 = 0.0 0.0 + n = -1.019803903 + 0.2 n = -1.019803903 + 0.2 Combine like terms: -1.019803903 + 0.2 = -0.819803903 n = -0.819803903 Simplifying n = -0.819803903

Solution

The solution to the problem is based on the solutions from the subproblems. n = {1.219803903, -0.819803903}

See similar equations:

| 0.15x+0.05(4-x)=0.7(-1) | | 3c-1=8 | | 1-5x=36 | | 2(3a+2a)=10 | | -16=2q | | 3x+3y=3xy | | 4m^2-9n^2= | | 6(y-5)=42 | | 7t-1(t+5)=6t+5 | | 4z+2i-4=0 | | 7g-5=-33 | | .90n=-1.10 | | 9x^2-2x-6=0 | | 7b=-63 | | 3(d+7d)=24 | | p*52.6=.26 | | -4+r=5 | | 0=-5x^2+7x+8 | | p*52.6=26 | | 2/3G+1/3g=14 | | X-3=-5.50 | | 144=-12x+3 | | Cos^2x-2cosx=o | | (x-1)(x-1)=49 | | 2.10n=1.17 | | 7x-3x+4y-1x=9 | | 2.7x-9=18 | | (R+1)(4r+1)=0 | | 5+c/2=18 | | x-49+1+3x=127+32 | | 8x+1=43x | | 77=7(u-76) |

Equations solver categories