g^2+26g=47

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Solution for g^2+26g=47 equation:


Simplifying
g2 + 26g = 47

Reorder the terms:
26g + g2 = 47

Solving
26g + g2 = 47

Solving for variable 'g'.

Reorder the terms:
-47 + 26g + g2 = 47 + -47

Combine like terms: 47 + -47 = 0
-47 + 26g + g2 = 0

Begin completing the square.

Move the constant term to the right:

Add '47' to each side of the equation.
-47 + 26g + 47 + g2 = 0 + 47

Reorder the terms:
-47 + 47 + 26g + g2 = 0 + 47

Combine like terms: -47 + 47 = 0
0 + 26g + g2 = 0 + 47
26g + g2 = 0 + 47

Combine like terms: 0 + 47 = 47
26g + g2 = 47

The g term is 26g.  Take half its coefficient (13).
Square it (169) and add it to both sides.

Add '169' to each side of the equation.
26g + 169 + g2 = 47 + 169

Reorder the terms:
169 + 26g + g2 = 47 + 169

Combine like terms: 47 + 169 = 216
169 + 26g + g2 = 216

Factor a perfect square on the left side:
(g + 13)(g + 13) = 216

Calculate the square root of the right side: 14.696938457

Break this problem into two subproblems by setting 
(g + 13) equal to 14.696938457 and -14.696938457.

Subproblem 1

g + 13 = 14.696938457 Simplifying g + 13 = 14.696938457 Reorder the terms: 13 + g = 14.696938457 Solving 13 + g = 14.696938457 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + g = 14.696938457 + -13 Combine like terms: 13 + -13 = 0 0 + g = 14.696938457 + -13 g = 14.696938457 + -13 Combine like terms: 14.696938457 + -13 = 1.696938457 g = 1.696938457 Simplifying g = 1.696938457

Subproblem 2

g + 13 = -14.696938457 Simplifying g + 13 = -14.696938457 Reorder the terms: 13 + g = -14.696938457 Solving 13 + g = -14.696938457 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '-13' to each side of the equation. 13 + -13 + g = -14.696938457 + -13 Combine like terms: 13 + -13 = 0 0 + g = -14.696938457 + -13 g = -14.696938457 + -13 Combine like terms: -14.696938457 + -13 = -27.696938457 g = -27.696938457 Simplifying g = -27.696938457

Solution

The solution to the problem is based on the solutions from the subproblems. g = {1.696938457, -27.696938457}

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