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Simplifying 5a2 + 9ab + 4b2 = 0 Reorder the terms: 9ab + 5a2 + 4b2 = 0 Solving 9ab + 5a2 + 4b2 = 0 Solving for variable 'a'. Factor a trinomial. (5a + 4b)(a + b) = 0Subproblem 1
Set the factor '(5a + 4b)' equal to zero and attempt to solve: Simplifying 5a + 4b = 0 Solving 5a + 4b = 0 Move all terms containing a to the left, all other terms to the right. Add '-4b' to each side of the equation. 5a + 4b + -4b = 0 + -4b Combine like terms: 4b + -4b = 0 5a + 0 = 0 + -4b 5a = 0 + -4b Remove the zero: 5a = -4b Divide each side by '5'. a = -0.8b Simplifying a = -0.8bSubproblem 2
Set the factor '(a + b)' equal to zero and attempt to solve: Simplifying a + b = 0 Solving a + b = 0 Move all terms containing a to the left, all other terms to the right. Add '-1b' to each side of the equation. a + b + -1b = 0 + -1b Combine like terms: b + -1b = 0 a + 0 = 0 + -1b a = 0 + -1b Remove the zero: a = -1b Simplifying a = -1bSolution
a = {-0.8b, -1b}
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