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Simplifying 4x2 + 28x + 49 = 16 Reorder the terms: 49 + 28x + 4x2 = 16 Solving 49 + 28x + 4x2 = 16 Solving for variable 'x'. Reorder the terms: 49 + -16 + 28x + 4x2 = 16 + -16 Combine like terms: 49 + -16 = 33 33 + 28x + 4x2 = 16 + -16 Combine like terms: 16 + -16 = 0 33 + 28x + 4x2 = 0 Factor a trinomial. (11 + 2x)(3 + 2x) = 0Subproblem 1
Set the factor '(11 + 2x)' equal to zero and attempt to solve: Simplifying 11 + 2x = 0 Solving 11 + 2x = 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 + 2x = 0 + -11 Combine like terms: 11 + -11 = 0 0 + 2x = 0 + -11 2x = 0 + -11 Combine like terms: 0 + -11 = -11 2x = -11 Divide each side by '2'. x = -5.5 Simplifying x = -5.5Subproblem 2
Set the factor '(3 + 2x)' equal to zero and attempt to solve: Simplifying 3 + 2x = 0 Solving 3 + 2x = 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 + 2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2x = 0 + -3 2x = 0 + -3 Combine like terms: 0 + -3 = -3 2x = -3 Divide each side by '2'. x = -1.5 Simplifying x = -1.5Solution
x = {-5.5, -1.5}
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