g^2-28g+39=0

Simple and best practice solution for g^2-28g+39=0 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 g^2-28g+39=0 equation:


Simplifying
g2 + -28g + 39 = 0

Reorder the terms:
39 + -28g + g2 = 0

Solving
39 + -28g + g2 = 0

Solving for variable 'g'.

Begin completing the square.

Move the constant term to the right:

Add '-39' to each side of the equation.
39 + -28g + -39 + g2 = 0 + -39

Reorder the terms:
39 + -39 + -28g + g2 = 0 + -39

Combine like terms: 39 + -39 = 0
0 + -28g + g2 = 0 + -39
-28g + g2 = 0 + -39

Combine like terms: 0 + -39 = -39
-28g + g2 = -39

The g term is -28g.  Take half its coefficient (-14).
Square it (196) and add it to both sides.

Add '196' to each side of the equation.
-28g + 196 + g2 = -39 + 196

Reorder the terms:
196 + -28g + g2 = -39 + 196

Combine like terms: -39 + 196 = 157
196 + -28g + g2 = 157

Factor a perfect square on the left side:
(g + -14)(g + -14) = 157

Calculate the square root of the right side: 12.529964086

Break this problem into two subproblems by setting 
(g + -14) equal to 12.529964086 and -12.529964086.

Subproblem 1

g + -14 = 12.529964086 Simplifying g + -14 = 12.529964086 Reorder the terms: -14 + g = 12.529964086 Solving -14 + g = 12.529964086 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + g = 12.529964086 + 14 Combine like terms: -14 + 14 = 0 0 + g = 12.529964086 + 14 g = 12.529964086 + 14 Combine like terms: 12.529964086 + 14 = 26.529964086 g = 26.529964086 Simplifying g = 26.529964086

Subproblem 2

g + -14 = -12.529964086 Simplifying g + -14 = -12.529964086 Reorder the terms: -14 + g = -12.529964086 Solving -14 + g = -12.529964086 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '14' to each side of the equation. -14 + 14 + g = -12.529964086 + 14 Combine like terms: -14 + 14 = 0 0 + g = -12.529964086 + 14 g = -12.529964086 + 14 Combine like terms: -12.529964086 + 14 = 1.470035914 g = 1.470035914 Simplifying g = 1.470035914

Solution

The solution to the problem is based on the solutions from the subproblems. g = {26.529964086, 1.470035914}

See similar equations:

| -16x^2+160x= | | 2+5x=12+3x | | g^2-28+39=0 | | x^2+X^2+8x+16=0 | | -y+3=2x | | 3mn^3+5m^3n-6mn^3+15m^3n= | | x^12-3x^6+2=0 | | (x^2+14x+48)(x+8)= | | x^4+23x^2-50=0 | | x^2+20x=41 | | -2x-3x-55=20 | | -46-2x-4x=44 | | -6(10-4)=-3(-12-8f) | | -3x-4+5x=8 | | -2X+45=3X | | -32-6x-x=17 | | 2a*4b= | | 49x^2+28x-60=0 | | 2x-17+x=10 | | 5x-2x-24=15 | | 10x-11-4=43 | | 12d=25+7d | | -25+3x+2x=30 | | 2p+5q=30 | | -27-5x-3x=45 | | 2(k+k+k+k)+3=12-k | | X(x+6)=400 | | 5x-3x-8=4 | | 3x+x-15=37 | | 6(8-y)=36 | | 7n-10=6+n(5-2) | | x+0.05x=800 |

Equations solver categories