16-16q+2.25q^2=0

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Solution for 16-16q+2.25q^2=0 equation:


Simplifying
16 + -16q + 2.25q2 = 0

Solving
16 + -16q + 2.25q2 = 0

Solving for variable 'q'.

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

Divide each side by '2.25'.
7.111111111 + -7.111111111q + q2 = 0

Move the constant term to the right:

Add '-7.111111111' to each side of the equation.
7.111111111 + -7.111111111q + -7.111111111 + q2 = 0 + -7.111111111

Reorder the terms:
7.111111111 + -7.111111111 + -7.111111111q + q2 = 0 + -7.111111111

Combine like terms: 7.111111111 + -7.111111111 = 0.000000000
0.000000000 + -7.111111111q + q2 = 0 + -7.111111111
-7.111111111q + q2 = 0 + -7.111111111

Combine like terms: 0 + -7.111111111 = -7.111111111
-7.111111111q + q2 = -7.111111111

The q term is -7.111111111q.  Take half its coefficient (-3.555555556).
Square it (12.64197531) and add it to both sides.

Add '12.64197531' to each side of the equation.
-7.111111111q + 12.64197531 + q2 = -7.111111111 + 12.64197531

Reorder the terms:
12.64197531 + -7.111111111q + q2 = -7.111111111 + 12.64197531

Combine like terms: -7.111111111 + 12.64197531 = 5.530864199
12.64197531 + -7.111111111q + q2 = 5.530864199

Factor a perfect square on the left side:
(q + -3.555555556)(q + -3.555555556) = 5.530864199

Calculate the square root of the right side: 2.351778943

Break this problem into two subproblems by setting 
(q + -3.555555556) equal to 2.351778943 and -2.351778943.

Subproblem 1

q + -3.555555556 = 2.351778943 Simplifying q + -3.555555556 = 2.351778943 Reorder the terms: -3.555555556 + q = 2.351778943 Solving -3.555555556 + q = 2.351778943 Solving for variable 'q'. Move all terms containing q to the left, all other terms to the right. Add '3.555555556' to each side of the equation. -3.555555556 + 3.555555556 + q = 2.351778943 + 3.555555556 Combine like terms: -3.555555556 + 3.555555556 = 0.000000000 0.000000000 + q = 2.351778943 + 3.555555556 q = 2.351778943 + 3.555555556 Combine like terms: 2.351778943 + 3.555555556 = 5.907334499 q = 5.907334499 Simplifying q = 5.907334499

Subproblem 2

q + -3.555555556 = -2.351778943 Simplifying q + -3.555555556 = -2.351778943 Reorder the terms: -3.555555556 + q = -2.351778943 Solving -3.555555556 + q = -2.351778943 Solving for variable 'q'. Move all terms containing q to the left, all other terms to the right. Add '3.555555556' to each side of the equation. -3.555555556 + 3.555555556 + q = -2.351778943 + 3.555555556 Combine like terms: -3.555555556 + 3.555555556 = 0.000000000 0.000000000 + q = -2.351778943 + 3.555555556 q = -2.351778943 + 3.555555556 Combine like terms: -2.351778943 + 3.555555556 = 1.203776613 q = 1.203776613 Simplifying q = 1.203776613

Solution

The solution to the problem is based on the solutions from the subproblems. q = {5.907334499, 1.203776613}

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