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Simplifying 19 = -3h(h + 5) Reorder the terms: 19 = -3h(5 + h) 19 = (5 * -3h + h * -3h) 19 = (-15h + -3h2) Solving 19 = -15h + -3h2 Solving for variable 'h'. Reorder the terms: 19 + 15h + 3h2 = -15h + 15h + -3h2 + 3h2 Combine like terms: -15h + 15h = 0 19 + 15h + 3h2 = 0 + -3h2 + 3h2 19 + 15h + 3h2 = -3h2 + 3h2 Combine like terms: -3h2 + 3h2 = 0 19 + 15h + 3h2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 6.333333333 + 5h + h2 = 0 Move the constant term to the right: Add '-6.333333333' to each side of the equation. 6.333333333 + 5h + -6.333333333 + h2 = 0 + -6.333333333 Reorder the terms: 6.333333333 + -6.333333333 + 5h + h2 = 0 + -6.333333333 Combine like terms: 6.333333333 + -6.333333333 = 0.000000000 0.000000000 + 5h + h2 = 0 + -6.333333333 5h + h2 = 0 + -6.333333333 Combine like terms: 0 + -6.333333333 = -6.333333333 5h + h2 = -6.333333333 The h term is 5h. Take half its coefficient (2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. 5h + 6.25 + h2 = -6.333333333 + 6.25 Reorder the terms: 6.25 + 5h + h2 = -6.333333333 + 6.25 Combine like terms: -6.333333333 + 6.25 = -0.083333333 6.25 + 5h + h2 = -0.083333333 Factor a perfect square on the left side: (h + 2.5)(h + 2.5) = -0.083333333 Can't calculate square root of the right side. The solution to this equation could not be determined.
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