7n^2=4n-4

Simple and best practice solution for 7n^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 7n^2=4n-4 equation:


Simplifying
7n2 = 4n + -4

Reorder the terms:
7n2 = -4 + 4n

Solving
7n2 = -4 + 4n

Solving for variable 'n'.

Reorder the terms:
4 + -4n + 7n2 = -4 + 4n + 4 + -4n

Reorder the terms:
4 + -4n + 7n2 = -4 + 4 + 4n + -4n

Combine like terms: -4 + 4 = 0
4 + -4n + 7n2 = 0 + 4n + -4n
4 + -4n + 7n2 = 4n + -4n

Combine like terms: 4n + -4n = 0
4 + -4n + 7n2 = 0

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

Divide each side by '7'.
0.5714285714 + -0.5714285714n + n2 = 0

Move the constant term to the right:

Add '-0.5714285714' to each side of the equation.
0.5714285714 + -0.5714285714n + -0.5714285714 + n2 = 0 + -0.5714285714

Reorder the terms:
0.5714285714 + -0.5714285714 + -0.5714285714n + n2 = 0 + -0.5714285714

Combine like terms: 0.5714285714 + -0.5714285714 = 0.0000000000
0.0000000000 + -0.5714285714n + n2 = 0 + -0.5714285714
-0.5714285714n + n2 = 0 + -0.5714285714

Combine like terms: 0 + -0.5714285714 = -0.5714285714
-0.5714285714n + n2 = -0.5714285714

The n term is -0.5714285714n.  Take half its coefficient (-0.2857142857).
Square it (0.08163265305) and add it to both sides.

Add '0.08163265305' to each side of the equation.
-0.5714285714n + 0.08163265305 + n2 = -0.5714285714 + 0.08163265305

Reorder the terms:
0.08163265305 + -0.5714285714n + n2 = -0.5714285714 + 0.08163265305

Combine like terms: -0.5714285714 + 0.08163265305 = -0.48979591835
0.08163265305 + -0.5714285714n + n2 = -0.48979591835

Factor a perfect square on the left side:
(n + -0.2857142857)(n + -0.2857142857) = -0.48979591835

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| p=5w+5l | | 8(5x)=(8*5)x | | -(-3)[(6)-(-3)]= | | -10f=-9f-8 | | 8a+12=-3+34 | | 3x^2-15=66 | | 3x^3(4x^4+172)=0 | | 2(3X+5)=4X-4 | | 3+m=15-5m | | -16t^2+96t+64=0 | | 16x^2-256x-25Y^2-150y+399=0 | | 9(e-1)=-7e-9 | | (2x+9)-5=0 | | 2+2x+2=14 | | -p^2-5p+16=0 | | 1/8z=7 | | X^2*ln(x)+1=0 | | .4x=20000 | | 36=x^5 | | J^2-12j-47=0 | | 5x-6y+2=0 | | .13z=7 | | 24x+50=x^2+24x-50 | | 3c+2=16+8c | | .166x=4 | | 100=18x+b+d | | 6n-34=-6h+14 | | (5x-10)(5x-5)=0 | | 15x^2-5x=4 | | 15-r=4r+2 | | 1/6×=4 | | 13y-2= |

Equations solver categories