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Simplifying 2x2 + 1 + 7x + 2 + x2 + 3x = 0 Reorder the terms: 1 + 2 + 7x + 3x + 2x2 + x2 = 0 Combine like terms: 1 + 2 = 3 3 + 7x + 3x + 2x2 + x2 = 0 Combine like terms: 7x + 3x = 10x 3 + 10x + 2x2 + x2 = 0 Combine like terms: 2x2 + x2 = 3x2 3 + 10x + 3x2 = 0 Solving 3 + 10x + 3x2 = 0 Solving for variable 'x'. Factor a trinomial. (3 + x)(1 + 3x) = 0Subproblem 1
Set the factor '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3Subproblem 2
Set the factor '(1 + 3x)' equal to zero and attempt to solve: Simplifying 1 + 3x = 0 Solving 1 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 3x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 3x = 0 + -1 3x = 0 + -1 Combine like terms: 0 + -1 = -1 3x = -1 Divide each side by '3'. x = -0.3333333333 Simplifying x = -0.3333333333Solution
x = {-3, -0.3333333333}
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