0.5Q^2+5.5Q=95

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Solution for 0.5Q^2+5.5Q=95 equation:


Simplifying
0.5Q2 + 5.5Q = 95

Reorder the terms:
5.5Q + 0.5Q2 = 95

Solving
5.5Q + 0.5Q2 = 95

Solving for variable 'Q'.

Reorder the terms:
-95 + 5.5Q + 0.5Q2 = 95 + -95

Combine like terms: 95 + -95 = 0
-95 + 5.5Q + 0.5Q2 = 0

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

Divide each side by '0.5'.
-190 + 11Q + Q2 = 0

Move the constant term to the right:

Add '190' to each side of the equation.
-190 + 11Q + 190 + Q2 = 0 + 190

Reorder the terms:
-190 + 190 + 11Q + Q2 = 0 + 190

Combine like terms: -190 + 190 = 0
0 + 11Q + Q2 = 0 + 190
11Q + Q2 = 0 + 190

Combine like terms: 0 + 190 = 190
11Q + Q2 = 190

The Q term is 11Q.  Take half its coefficient (5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
11Q + 30.25 + Q2 = 190 + 30.25

Reorder the terms:
30.25 + 11Q + Q2 = 190 + 30.25

Combine like terms: 190 + 30.25 = 220.25
30.25 + 11Q + Q2 = 220.25

Factor a perfect square on the left side:
(Q + 5.5)(Q + 5.5) = 220.25

Calculate the square root of the right side: 14.84082208

Break this problem into two subproblems by setting 
(Q + 5.5) equal to 14.84082208 and -14.84082208.

Subproblem 1

Q + 5.5 = 14.84082208 Simplifying Q + 5.5 = 14.84082208 Reorder the terms: 5.5 + Q = 14.84082208 Solving 5.5 + Q = 14.84082208 Solving for variable 'Q'. Move all terms containing Q to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + Q = 14.84082208 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + Q = 14.84082208 + -5.5 Q = 14.84082208 + -5.5 Combine like terms: 14.84082208 + -5.5 = 9.34082208 Q = 9.34082208 Simplifying Q = 9.34082208

Subproblem 2

Q + 5.5 = -14.84082208 Simplifying Q + 5.5 = -14.84082208 Reorder the terms: 5.5 + Q = -14.84082208 Solving 5.5 + Q = -14.84082208 Solving for variable 'Q'. Move all terms containing Q to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + Q = -14.84082208 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + Q = -14.84082208 + -5.5 Q = -14.84082208 + -5.5 Combine like terms: -14.84082208 + -5.5 = -20.34082208 Q = -20.34082208 Simplifying Q = -20.34082208

Solution

The solution to the problem is based on the solutions from the subproblems. Q = {9.34082208, -20.34082208}

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