(2a^2-3ab-9b^2)=0

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Solution for (2a^2-3ab-9b^2)=0 equation:


Simplifying
(2a2 + -3ab + -9b2) = 0

Reorder the terms:
(-3ab + 2a2 + -9b2) = 0

Remove parenthesis around (-3ab + 2a2 + -9b2)
-3ab + 2a2 + -9b2 = 0

Solving
-3ab + 2a2 + -9b2 = 0

Solving for variable 'a'.

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

Subproblem 1

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

Subproblem 2

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

Solution

a = {3b, -1.5b}

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