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Simplifying x(5x + 21) + 22 = 0 Reorder the terms: x(21 + 5x) + 22 = 0 (21 * x + 5x * x) + 22 = 0 (21x + 5x2) + 22 = 0 Reorder the terms: 22 + 21x + 5x2 = 0 Solving 22 + 21x + 5x2 = 0 Solving for variable 'x'. Factor a trinomial. (11 + 5x)(2 + x) = 0Subproblem 1
Set the factor '(11 + 5x)' equal to zero and attempt to solve: Simplifying 11 + 5x = 0 Solving 11 + 5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + 5x = 0 + -11 Combine like terms: 11 + -11 = 0 0 + 5x = 0 + -11 5x = 0 + -11 Combine like terms: 0 + -11 = -11 5x = -11 Divide each side by '5'. x = -2.2 Simplifying x = -2.2Subproblem 2
Set the factor '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2Solution
x = {-2.2, -2}
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