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Simplifying x2 + -8x + 16 = 49 Reorder the terms: 16 + -8x + x2 = 49 Solving 16 + -8x + x2 = 49 Solving for variable 'x'. Reorder the terms: 16 + -49 + -8x + x2 = 49 + -49 Combine like terms: 16 + -49 = -33 -33 + -8x + x2 = 49 + -49 Combine like terms: 49 + -49 = 0 -33 + -8x + x2 = 0 Factor a trinomial. (-3 + -1x)(11 + -1x) = 0Subproblem 1
Set the factor '(-3 + -1x)' equal to zero and attempt to solve: Simplifying -3 + -1x = 0 Solving -3 + -1x = 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 + -1x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1x = 0 + 3 -1x = 0 + 3 Combine like terms: 0 + 3 = 3 -1x = 3 Divide each side by '-1'. x = -3 Simplifying x = -3Subproblem 2
Set the factor '(11 + -1x)' equal to zero and attempt to solve: Simplifying 11 + -1x = 0 Solving 11 + -1x = 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 + -1x = 0 + -11 Combine like terms: 11 + -11 = 0 0 + -1x = 0 + -11 -1x = 0 + -11 Combine like terms: 0 + -11 = -11 -1x = -11 Divide each side by '-1'. x = 11 Simplifying x = 11Solution
x = {-3, 11}
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