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Simplifying x(x + 3) + -10(x + 3) = 0 Reorder the terms: x(3 + x) + -10(x + 3) = 0 (3 * x + x * x) + -10(x + 3) = 0 (3x + x2) + -10(x + 3) = 0 Reorder the terms: 3x + x2 + -10(3 + x) = 0 3x + x2 + (3 * -10 + x * -10) = 0 3x + x2 + (-30 + -10x) = 0 Reorder the terms: -30 + 3x + -10x + x2 = 0 Combine like terms: 3x + -10x = -7x -30 + -7x + x2 = 0 Solving -30 + -7x + x2 = 0 Solving for variable 'x'. Factor a trinomial. (-3 + -1x)(10 + -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 '(10 + -1x)' equal to zero and attempt to solve: Simplifying 10 + -1x = 0 Solving 10 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -1x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -1x = 0 + -10 -1x = 0 + -10 Combine like terms: 0 + -10 = -10 -1x = -10 Divide each side by '-1'. x = 10 Simplifying x = 10Solution
x = {-3, 10}
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