g^2+7g=288

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Solution for g^2+7g=288 equation:


Simplifying
g2 + 7g = 288

Reorder the terms:
7g + g2 = 288

Solving
7g + g2 = 288

Solving for variable 'g'.

Reorder the terms:
-288 + 7g + g2 = 288 + -288

Combine like terms: 288 + -288 = 0
-288 + 7g + g2 = 0

Begin completing the square.

Move the constant term to the right:

Add '288' to each side of the equation.
-288 + 7g + 288 + g2 = 0 + 288

Reorder the terms:
-288 + 288 + 7g + g2 = 0 + 288

Combine like terms: -288 + 288 = 0
0 + 7g + g2 = 0 + 288
7g + g2 = 0 + 288

Combine like terms: 0 + 288 = 288
7g + g2 = 288

The g term is 7g.  Take half its coefficient (3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
7g + 12.25 + g2 = 288 + 12.25

Reorder the terms:
12.25 + 7g + g2 = 288 + 12.25

Combine like terms: 288 + 12.25 = 300.25
12.25 + 7g + g2 = 300.25

Factor a perfect square on the left side:
(g + 3.5)(g + 3.5) = 300.25

Calculate the square root of the right side: 17.327723451

Break this problem into two subproblems by setting 
(g + 3.5) equal to 17.327723451 and -17.327723451.

Subproblem 1

g + 3.5 = 17.327723451 Simplifying g + 3.5 = 17.327723451 Reorder the terms: 3.5 + g = 17.327723451 Solving 3.5 + g = 17.327723451 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + g = 17.327723451 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + g = 17.327723451 + -3.5 g = 17.327723451 + -3.5 Combine like terms: 17.327723451 + -3.5 = 13.827723451 g = 13.827723451 Simplifying g = 13.827723451

Subproblem 2

g + 3.5 = -17.327723451 Simplifying g + 3.5 = -17.327723451 Reorder the terms: 3.5 + g = -17.327723451 Solving 3.5 + g = -17.327723451 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + g = -17.327723451 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + g = -17.327723451 + -3.5 g = -17.327723451 + -3.5 Combine like terms: -17.327723451 + -3.5 = -20.827723451 g = -20.827723451 Simplifying g = -20.827723451

Solution

The solution to the problem is based on the solutions from the subproblems. g = {13.827723451, -20.827723451}

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