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