5n^2-3n+17=7

Simple and best practice solution for 5n^2-3n+17=7 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^2-3n+17=7 equation:


Simplifying
5n2 + -3n + 17 = 7

Reorder the terms:
17 + -3n + 5n2 = 7

Solving
17 + -3n + 5n2 = 7

Solving for variable 'n'.

Reorder the terms:
17 + -7 + -3n + 5n2 = 7 + -7

Combine like terms: 17 + -7 = 10
10 + -3n + 5n2 = 7 + -7

Combine like terms: 7 + -7 = 0
10 + -3n + 5n2 = 0

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

Divide each side by '5'.
2 + -0.6n + n2 = 0

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + -0.6n + -2 + n2 = 0 + -2

Reorder the terms:
2 + -2 + -0.6n + n2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -0.6n + n2 = 0 + -2
-0.6n + n2 = 0 + -2

Combine like terms: 0 + -2 = -2
-0.6n + n2 = -2

The n term is -0.6n.  Take half its coefficient (-0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
-0.6n + 0.09 + n2 = -2 + 0.09

Reorder the terms:
0.09 + -0.6n + n2 = -2 + 0.09

Combine like terms: -2 + 0.09 = -1.91
0.09 + -0.6n + n2 = -1.91

Factor a perfect square on the left side:
(n + -0.3)(n + -0.3) = -1.91

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 5x^5y^6/30x^5y^4 | | f(x)=1/4(12)-3 | | (ui+1)*7=35 | | 20z=60 | | 12+4e^3x=22 | | 25=5n | | x/1=10 | | 4p^2-7p=2 | | n-13.23=-15.55 | | 7.5(x-3)=-0.5+41.5 | | -5/2(n_ | | 3p^2-14=-9 | | -n/6.92=-4.2 | | y/8=1 | | 2x^2-3y^2+6x+12y+1=0 | | Z^4-16= | | X+y-2x-4y-8=0 | | n+15.95=28 | | 5k^2-4k-14=-5 | | y+14=26 | | X-(2x+5)= | | y-15=-13 | | 8f-28=140 | | 1/3×-39= | | 1.08*x=.83 | | X-4+y=0 | | 4-25/2 | | 18/x=1 | | 5(v+405)=-335 | | 18.38=n-4.125 | | 35x-20x+500= | | 7x^2+8x-26=-9 |

Equations solver categories