q^2-100=900+15q

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Solution for q^2-100=900+15q equation:


Simplifying
q2 + -100 = 900 + 15q

Reorder the terms:
-100 + q2 = 900 + 15q

Solving
-100 + q2 = 900 + 15q

Solving for variable 'q'.

Reorder the terms:
-100 + -900 + -15q + q2 = 900 + 15q + -900 + -15q

Combine like terms: -100 + -900 = -1000
-1000 + -15q + q2 = 900 + 15q + -900 + -15q

Reorder the terms:
-1000 + -15q + q2 = 900 + -900 + 15q + -15q

Combine like terms: 900 + -900 = 0
-1000 + -15q + q2 = 0 + 15q + -15q
-1000 + -15q + q2 = 15q + -15q

Combine like terms: 15q + -15q = 0
-1000 + -15q + q2 = 0

Factor a trinomial.
(-25 + -1q)(40 + -1q) = 0

Subproblem 1

Set the factor '(-25 + -1q)' equal to zero and attempt to solve: Simplifying -25 + -1q = 0 Solving -25 + -1q = 0 Move all terms containing q to the left, all other terms to the right. Add '25' to each side of the equation. -25 + 25 + -1q = 0 + 25 Combine like terms: -25 + 25 = 0 0 + -1q = 0 + 25 -1q = 0 + 25 Combine like terms: 0 + 25 = 25 -1q = 25 Divide each side by '-1'. q = -25 Simplifying q = -25

Subproblem 2

Set the factor '(40 + -1q)' equal to zero and attempt to solve: Simplifying 40 + -1q = 0 Solving 40 + -1q = 0 Move all terms containing q to the left, all other terms to the right. Add '-40' to each side of the equation. 40 + -40 + -1q = 0 + -40 Combine like terms: 40 + -40 = 0 0 + -1q = 0 + -40 -1q = 0 + -40 Combine like terms: 0 + -40 = -40 -1q = -40 Divide each side by '-1'. q = 40 Simplifying q = 40

Solution

q = {-25, 40}

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