2q^2-3q-9=0

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Solution for 2q^2-3q-9=0 equation:


Simplifying
2q2 + -3q + -9 = 0

Reorder the terms:
-9 + -3q + 2q2 = 0

Solving
-9 + -3q + 2q2 = 0

Solving for variable 'q'.

Factor a trinomial.
(-3 + -2q)(3 + -1q) = 0

Subproblem 1

Set the factor '(-3 + -2q)' equal to zero and attempt to solve: Simplifying -3 + -2q = 0 Solving -3 + -2q = 0 Move all terms containing q to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -2q = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -2q = 0 + 3 -2q = 0 + 3 Combine like terms: 0 + 3 = 3 -2q = 3 Divide each side by '-2'. q = -1.5 Simplifying q = -1.5

Subproblem 2

Set the factor '(3 + -1q)' equal to zero and attempt to solve: Simplifying 3 + -1q = 0 Solving 3 + -1q = 0 Move all terms containing q to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1q = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1q = 0 + -3 -1q = 0 + -3 Combine like terms: 0 + -3 = -3 -1q = -3 Divide each side by '-1'. q = 3 Simplifying q = 3

Solution

q = {-1.5, 3}

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