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Simplifying 0 = 25x + -4x2 + -36 Reorder the terms: 0 = -36 + 25x + -4x2 Solving 0 = -36 + 25x + -4x2 Solving for variable 'x'. Combine like terms: 0 + 36 = 36 36 + -25x + 4x2 = -36 + 25x + -4x2 + 36 + -25x + 4x2 Reorder the terms: 36 + -25x + 4x2 = -36 + 36 + 25x + -25x + -4x2 + 4x2 Combine like terms: -36 + 36 = 0 36 + -25x + 4x2 = 0 + 25x + -25x + -4x2 + 4x2 36 + -25x + 4x2 = 25x + -25x + -4x2 + 4x2 Combine like terms: 25x + -25x = 0 36 + -25x + 4x2 = 0 + -4x2 + 4x2 36 + -25x + 4x2 = -4x2 + 4x2 Combine like terms: -4x2 + 4x2 = 0 36 + -25x + 4x2 = 0 Factor a trinomial. (9 + -4x)(4 + -1x) = 0Subproblem 1
Set the factor '(9 + -4x)' equal to zero and attempt to solve: Simplifying 9 + -4x = 0 Solving 9 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -4x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -4x = 0 + -9 -4x = 0 + -9 Combine like terms: 0 + -9 = -9 -4x = -9 Divide each side by '-4'. x = 2.25 Simplifying x = 2.25Subproblem 2
Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4Solution
x = {2.25, 4}
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