-170q=90-20q^2

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Solution for -170q=90-20q^2 equation:


Simplifying
-170q = 90 + -20q2

Solving
-170q = 90 + -20q2

Solving for variable 'q'.

Reorder the terms:
-90 + -170q + 20q2 = 90 + -20q2 + -90 + 20q2

Reorder the terms:
-90 + -170q + 20q2 = 90 + -90 + -20q2 + 20q2

Combine like terms: 90 + -90 = 0
-90 + -170q + 20q2 = 0 + -20q2 + 20q2
-90 + -170q + 20q2 = -20q2 + 20q2

Combine like terms: -20q2 + 20q2 = 0
-90 + -170q + 20q2 = 0

Factor out the Greatest Common Factor (GCF), '10'.
10(-9 + -17q + 2q2) = 0

Factor a trinomial.
10((-1 + -2q)(9 + -1q)) = 0

Ignore the factor 10.

Subproblem 1

Set the factor '(-1 + -2q)' equal to zero and attempt to solve: Simplifying -1 + -2q = 0 Solving -1 + -2q = 0 Move all terms containing q to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -2q = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -2q = 0 + 1 -2q = 0 + 1 Combine like terms: 0 + 1 = 1 -2q = 1 Divide each side by '-2'. q = -0.5 Simplifying q = -0.5

Subproblem 2

Set the factor '(9 + -1q)' equal to zero and attempt to solve: Simplifying 9 + -1q = 0 Solving 9 + -1q = 0 Move all terms containing q to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1q = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1q = 0 + -9 -1q = 0 + -9 Combine like terms: 0 + -9 = -9 -1q = -9 Divide each side by '-1'. q = 9 Simplifying q = 9

Solution

q = {-0.5, 9}

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