0=-0.02q^2+3q-41

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Solution for 0=-0.02q^2+3q-41 equation:


Simplifying
0 = -0.02q2 + 3q + -41

Reorder the terms:
0 = -41 + 3q + -0.02q2

Solving
0 = -41 + 3q + -0.02q2

Solving for variable 'q'.

Combine like terms: 0 + 41 = 41
41 + -3q + 0.02q2 = -41 + 3q + -0.02q2 + 41 + -3q + 0.02q2

Reorder the terms:
41 + -3q + 0.02q2 = -41 + 41 + 3q + -3q + -0.02q2 + 0.02q2

Combine like terms: -41 + 41 = 0
41 + -3q + 0.02q2 = 0 + 3q + -3q + -0.02q2 + 0.02q2
41 + -3q + 0.02q2 = 3q + -3q + -0.02q2 + 0.02q2

Combine like terms: 3q + -3q = 0
41 + -3q + 0.02q2 = 0 + -0.02q2 + 0.02q2
41 + -3q + 0.02q2 = -0.02q2 + 0.02q2

Combine like terms: -0.02q2 + 0.02q2 = 0.00
41 + -3q + 0.02q2 = 0.00

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

Divide each side by '0.02'.
2050 + -150q + q2 = 0

Move the constant term to the right:

Add '-2050' to each side of the equation.
2050 + -150q + -2050 + q2 = 0 + -2050

Reorder the terms:
2050 + -2050 + -150q + q2 = 0 + -2050

Combine like terms: 2050 + -2050 = 0
0 + -150q + q2 = 0 + -2050
-150q + q2 = 0 + -2050

Combine like terms: 0 + -2050 = -2050
-150q + q2 = -2050

The q term is -150q.  Take half its coefficient (-75).
Square it (5625) and add it to both sides.

Add '5625' to each side of the equation.
-150q + 5625 + q2 = -2050 + 5625

Reorder the terms:
5625 + -150q + q2 = -2050 + 5625

Combine like terms: -2050 + 5625 = 3575
5625 + -150q + q2 = 3575

Factor a perfect square on the left side:
(q + -75)(q + -75) = 3575

Calculate the square root of the right side: 59.791303716

Break this problem into two subproblems by setting 
(q + -75) equal to 59.791303716 and -59.791303716.

Subproblem 1

q + -75 = 59.791303716 Simplifying q + -75 = 59.791303716 Reorder the terms: -75 + q = 59.791303716 Solving -75 + q = 59.791303716 Solving for variable 'q'. Move all terms containing q to the left, all other terms to the right. Add '75' to each side of the equation. -75 + 75 + q = 59.791303716 + 75 Combine like terms: -75 + 75 = 0 0 + q = 59.791303716 + 75 q = 59.791303716 + 75 Combine like terms: 59.791303716 + 75 = 134.791303716 q = 134.791303716 Simplifying q = 134.791303716

Subproblem 2

q + -75 = -59.791303716 Simplifying q + -75 = -59.791303716 Reorder the terms: -75 + q = -59.791303716 Solving -75 + q = -59.791303716 Solving for variable 'q'. Move all terms containing q to the left, all other terms to the right. Add '75' to each side of the equation. -75 + 75 + q = -59.791303716 + 75 Combine like terms: -75 + 75 = 0 0 + q = -59.791303716 + 75 q = -59.791303716 + 75 Combine like terms: -59.791303716 + 75 = 15.208696284 q = 15.208696284 Simplifying q = 15.208696284

Solution

The solution to the problem is based on the solutions from the subproblems. q = {134.791303716, 15.208696284}

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