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Simplifying 2x(4x + 15) = 27 Reorder the terms: 2x(15 + 4x) = 27 (15 * 2x + 4x * 2x) = 27 (30x + 8x2) = 27 Solving 30x + 8x2 = 27 Solving for variable 'x'. Reorder the terms: -27 + 30x + 8x2 = 27 + -27 Combine like terms: 27 + -27 = 0 -27 + 30x + 8x2 = 0 Factor a trinomial. (-9 + -2x)(3 + -4x) = 0Subproblem 1
Set the factor '(-9 + -2x)' equal to zero and attempt to solve: Simplifying -9 + -2x = 0 Solving -9 + -2x = 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 + -2x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -2x = 0 + 9 -2x = 0 + 9 Combine like terms: 0 + 9 = 9 -2x = 9 Divide each side by '-2'. x = -4.5 Simplifying x = -4.5Subproblem 2
Set the factor '(3 + -4x)' equal to zero and attempt to solve: Simplifying 3 + -4x = 0 Solving 3 + -4x = 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 + -4x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -4x = 0 + -3 -4x = 0 + -3 Combine like terms: 0 + -3 = -3 -4x = -3 Divide each side by '-4'. x = 0.75 Simplifying x = 0.75Solution
x = {-4.5, 0.75}
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