20g^2-4g^2-25g+5=

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Solution for 20g^2-4g^2-25g+5= equation:


Simplifying
20g2 + -4g2 + -25g + 5 = 0

Reorder the terms:
5 + -25g + 20g2 + -4g2 = 0

Combine like terms: 20g2 + -4g2 = 16g2
5 + -25g + 16g2 = 0

Solving
5 + -25g + 16g2 = 0

Solving for variable 'g'.

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

Divide each side by '16'.
0.3125 + -1.5625g + g2 = 0

Move the constant term to the right:

Add '-0.3125' to each side of the equation.
0.3125 + -1.5625g + -0.3125 + g2 = 0 + -0.3125

Reorder the terms:
0.3125 + -0.3125 + -1.5625g + g2 = 0 + -0.3125

Combine like terms: 0.3125 + -0.3125 = 0.0000
0.0000 + -1.5625g + g2 = 0 + -0.3125
-1.5625g + g2 = 0 + -0.3125

Combine like terms: 0 + -0.3125 = -0.3125
-1.5625g + g2 = -0.3125

The g term is -1.5625g.  Take half its coefficient (-0.78125).
Square it (0.6103515625) and add it to both sides.

Add '0.6103515625' to each side of the equation.
-1.5625g + 0.6103515625 + g2 = -0.3125 + 0.6103515625

Reorder the terms:
0.6103515625 + -1.5625g + g2 = -0.3125 + 0.6103515625

Combine like terms: -0.3125 + 0.6103515625 = 0.2978515625
0.6103515625 + -1.5625g + g2 = 0.2978515625

Factor a perfect square on the left side:
(g + -0.78125)(g + -0.78125) = 0.2978515625

Calculate the square root of the right side: 0.545757787

Break this problem into two subproblems by setting 
(g + -0.78125) equal to 0.545757787 and -0.545757787.

Subproblem 1

g + -0.78125 = 0.545757787 Simplifying g + -0.78125 = 0.545757787 Reorder the terms: -0.78125 + g = 0.545757787 Solving -0.78125 + g = 0.545757787 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '0.78125' to each side of the equation. -0.78125 + 0.78125 + g = 0.545757787 + 0.78125 Combine like terms: -0.78125 + 0.78125 = 0.00000 0.00000 + g = 0.545757787 + 0.78125 g = 0.545757787 + 0.78125 Combine like terms: 0.545757787 + 0.78125 = 1.327007787 g = 1.327007787 Simplifying g = 1.327007787

Subproblem 2

g + -0.78125 = -0.545757787 Simplifying g + -0.78125 = -0.545757787 Reorder the terms: -0.78125 + g = -0.545757787 Solving -0.78125 + g = -0.545757787 Solving for variable 'g'. Move all terms containing g to the left, all other terms to the right. Add '0.78125' to each side of the equation. -0.78125 + 0.78125 + g = -0.545757787 + 0.78125 Combine like terms: -0.78125 + 0.78125 = 0.00000 0.00000 + g = -0.545757787 + 0.78125 g = -0.545757787 + 0.78125 Combine like terms: -0.545757787 + 0.78125 = 0.235492213 g = 0.235492213 Simplifying g = 0.235492213

Solution

The solution to the problem is based on the solutions from the subproblems. g = {1.327007787, 0.235492213}

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