5n^2=4n+6

Simple and best practice solution for 5n^2=4n+6 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 5n^2=4n+6 equation:


Simplifying
5n2 = 4n + 6

Reorder the terms:
5n2 = 6 + 4n

Solving
5n2 = 6 + 4n

Solving for variable 'n'.

Reorder the terms:
-6 + -4n + 5n2 = 6 + 4n + -6 + -4n

Reorder the terms:
-6 + -4n + 5n2 = 6 + -6 + 4n + -4n

Combine like terms: 6 + -6 = 0
-6 + -4n + 5n2 = 0 + 4n + -4n
-6 + -4n + 5n2 = 4n + -4n

Combine like terms: 4n + -4n = 0
-6 + -4n + 5n2 = 0

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

Divide each side by '5'.
-1.2 + -0.8n + n2 = 0

Move the constant term to the right:

Add '1.2' to each side of the equation.
-1.2 + -0.8n + 1.2 + n2 = 0 + 1.2

Reorder the terms:
-1.2 + 1.2 + -0.8n + n2 = 0 + 1.2

Combine like terms: -1.2 + 1.2 = 0.0
0.0 + -0.8n + n2 = 0 + 1.2
-0.8n + n2 = 0 + 1.2

Combine like terms: 0 + 1.2 = 1.2
-0.8n + n2 = 1.2

The n term is -0.8n.  Take half its coefficient (-0.4).
Square it (0.16) and add it to both sides.

Add '0.16' to each side of the equation.
-0.8n + 0.16 + n2 = 1.2 + 0.16

Reorder the terms:
0.16 + -0.8n + n2 = 1.2 + 0.16

Combine like terms: 1.2 + 0.16 = 1.36
0.16 + -0.8n + n2 = 1.36

Factor a perfect square on the left side:
(n + -0.4)(n + -0.4) = 1.36

Calculate the square root of the right side: 1.166190379

Break this problem into two subproblems by setting 
(n + -0.4) equal to 1.166190379 and -1.166190379.

Subproblem 1

n + -0.4 = 1.166190379 Simplifying n + -0.4 = 1.166190379 Reorder the terms: -0.4 + n = 1.166190379 Solving -0.4 + n = 1.166190379 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.4' to each side of the equation. -0.4 + 0.4 + n = 1.166190379 + 0.4 Combine like terms: -0.4 + 0.4 = 0.0 0.0 + n = 1.166190379 + 0.4 n = 1.166190379 + 0.4 Combine like terms: 1.166190379 + 0.4 = 1.566190379 n = 1.566190379 Simplifying n = 1.566190379

Subproblem 2

n + -0.4 = -1.166190379 Simplifying n + -0.4 = -1.166190379 Reorder the terms: -0.4 + n = -1.166190379 Solving -0.4 + n = -1.166190379 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.4' to each side of the equation. -0.4 + 0.4 + n = -1.166190379 + 0.4 Combine like terms: -0.4 + 0.4 = 0.0 0.0 + n = -1.166190379 + 0.4 n = -1.166190379 + 0.4 Combine like terms: -1.166190379 + 0.4 = -0.766190379 n = -0.766190379 Simplifying n = -0.766190379

Solution

The solution to the problem is based on the solutions from the subproblems. n = {1.566190379, -0.766190379}

See similar equations:

| 3m^2=-2 | | h(x)=2x^2-2x-12 | | 2t^2-2t-13=0 | | 175*4y=5y | | f(x)=x+14 | | p^2+56=15p | | 7(1+6x)-1=8x+40 | | 8m+12-12m-9+m=6 | | k^2-2k-5=0 | | 5m^2+26m+24=0 | | Y=0.4 | | 3(3p+4)=32+4p | | g(x)=0.5x-6 | | 2x+4+4x-14=180 | | 40=-8b | | -4-6k=-4-(6k+6) | | 1/8*1/5= | | -9+y=-9 | | 10x+10=-12x+15+5x | | 2w+21=p | | 2b+7=2(b-3) | | -5=y-14 | | 4x^2+40x-84=0 | | 33+5a=3-8(-3a+1) | | 0=-2x^2+x-1 | | 2w+22=p | | -4(7x+11)=2(10-19x)+2 | | 8(x-3)=-28+7x | | 2(6-5x)=-18 | | 8+6v=2(6+5v) | | 12x^2-11x+7=0 | | 3(1x-7)=9 |

Equations solver categories