q^2+60q-675=

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Solution for q^2+60q-675= equation:


Simplifying
q2 + 60q + -675 = 0

Reorder the terms:
-675 + 60q + q2 = 0

Solving
-675 + 60q + q2 = 0

Solving for variable 'q'.

Begin completing the square.

Move the constant term to the right:

Add '675' to each side of the equation.
-675 + 60q + 675 + q2 = 0 + 675

Reorder the terms:
-675 + 675 + 60q + q2 = 0 + 675

Combine like terms: -675 + 675 = 0
0 + 60q + q2 = 0 + 675
60q + q2 = 0 + 675

Combine like terms: 0 + 675 = 675
60q + q2 = 675

The q term is 60q.  Take half its coefficient (30).
Square it (900) and add it to both sides.

Add '900' to each side of the equation.
60q + 900 + q2 = 675 + 900

Reorder the terms:
900 + 60q + q2 = 675 + 900

Combine like terms: 675 + 900 = 1575
900 + 60q + q2 = 1575

Factor a perfect square on the left side:
(q + 30)(q + 30) = 1575

Calculate the square root of the right side: 39.686269666

Break this problem into two subproblems by setting 
(q + 30) equal to 39.686269666 and -39.686269666.

Subproblem 1

q + 30 = 39.686269666 Simplifying q + 30 = 39.686269666 Reorder the terms: 30 + q = 39.686269666 Solving 30 + q = 39.686269666 Solving for variable 'q'. Move all terms containing q to the left, all other terms to the right. Add '-30' to each side of the equation. 30 + -30 + q = 39.686269666 + -30 Combine like terms: 30 + -30 = 0 0 + q = 39.686269666 + -30 q = 39.686269666 + -30 Combine like terms: 39.686269666 + -30 = 9.686269666 q = 9.686269666 Simplifying q = 9.686269666

Subproblem 2

q + 30 = -39.686269666 Simplifying q + 30 = -39.686269666 Reorder the terms: 30 + q = -39.686269666 Solving 30 + q = -39.686269666 Solving for variable 'q'. Move all terms containing q to the left, all other terms to the right. Add '-30' to each side of the equation. 30 + -30 + q = -39.686269666 + -30 Combine like terms: 30 + -30 = 0 0 + q = -39.686269666 + -30 q = -39.686269666 + -30 Combine like terms: -39.686269666 + -30 = -69.686269666 q = -69.686269666 Simplifying q = -69.686269666

Solution

The solution to the problem is based on the solutions from the subproblems. q = {9.686269666, -69.686269666}

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