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Simplifying 30x + -4x2 = 5x2 + 25 Reorder the terms: 30x + -4x2 = 25 + 5x2 Solving 30x + -4x2 = 25 + 5x2 Solving for variable 'x'. Reorder the terms: -25 + 30x + -4x2 + -5x2 = 25 + 5x2 + -25 + -5x2 Combine like terms: -4x2 + -5x2 = -9x2 -25 + 30x + -9x2 = 25 + 5x2 + -25 + -5x2 Reorder the terms: -25 + 30x + -9x2 = 25 + -25 + 5x2 + -5x2 Combine like terms: 25 + -25 = 0 -25 + 30x + -9x2 = 0 + 5x2 + -5x2 -25 + 30x + -9x2 = 5x2 + -5x2 Combine like terms: 5x2 + -5x2 = 0 -25 + 30x + -9x2 = 0 Factor a trinomial. (-5 + 3x)(5 + -3x) = 0Subproblem 1
Set the factor '(-5 + 3x)' equal to zero and attempt to solve: Simplifying -5 + 3x = 0 Solving -5 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + 3x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + 3x = 0 + 5 3x = 0 + 5 Combine like terms: 0 + 5 = 5 3x = 5 Divide each side by '3'. x = 1.666666667 Simplifying x = 1.666666667Subproblem 2
Set the factor '(5 + -3x)' equal to zero and attempt to solve: Simplifying 5 + -3x = 0 Solving 5 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -3x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3x = 0 + -5 -3x = 0 + -5 Combine like terms: 0 + -5 = -5 -3x = -5 Divide each side by '-3'. x = 1.666666667 Simplifying x = 1.666666667Solution
x = {1.666666667, 1.666666667}
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