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Simplifying (x + 3)(x + 3) = 576 Reorder the terms: (3 + x)(x + 3) = 576 Reorder the terms: (3 + x)(3 + x) = 576 Multiply (3 + x) * (3 + x) (3(3 + x) + x(3 + x)) = 576 ((3 * 3 + x * 3) + x(3 + x)) = 576 ((9 + 3x) + x(3 + x)) = 576 (9 + 3x + (3 * x + x * x)) = 576 (9 + 3x + (3x + x2)) = 576 Combine like terms: 3x + 3x = 6x (9 + 6x + x2) = 576 Solving 9 + 6x + x2 = 576 Solving for variable 'x'. Reorder the terms: 9 + -576 + 6x + x2 = 576 + -576 Combine like terms: 9 + -576 = -567 -567 + 6x + x2 = 576 + -576 Combine like terms: 576 + -576 = 0 -567 + 6x + x2 = 0 Factor a trinomial. (-27 + -1x)(21 + -1x) = 0Subproblem 1
Set the factor '(-27 + -1x)' equal to zero and attempt to solve: Simplifying -27 + -1x = 0 Solving -27 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '27' to each side of the equation. -27 + 27 + -1x = 0 + 27 Combine like terms: -27 + 27 = 0 0 + -1x = 0 + 27 -1x = 0 + 27 Combine like terms: 0 + 27 = 27 -1x = 27 Divide each side by '-1'. x = -27 Simplifying x = -27Subproblem 2
Set the factor '(21 + -1x)' equal to zero and attempt to solve: Simplifying 21 + -1x = 0 Solving 21 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-21' to each side of the equation. 21 + -21 + -1x = 0 + -21 Combine like terms: 21 + -21 = 0 0 + -1x = 0 + -21 -1x = 0 + -21 Combine like terms: 0 + -21 = -21 -1x = -21 Divide each side by '-1'. x = 21 Simplifying x = 21Solution
x = {-27, 21}
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