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Simplifying 16x2 + -48x + -27 = 0 Reorder the terms: -27 + -48x + 16x2 = 0 Solving -27 + -48x + 16x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 16 the coefficient of the squared term: Divide each side by '16'. -1.6875 + -3x + x2 = 0 Move the constant term to the right: Add '1.6875' to each side of the equation. -1.6875 + -3x + 1.6875 + x2 = 0 + 1.6875 Reorder the terms: -1.6875 + 1.6875 + -3x + x2 = 0 + 1.6875 Combine like terms: -1.6875 + 1.6875 = 0.0000 0.0000 + -3x + x2 = 0 + 1.6875 -3x + x2 = 0 + 1.6875 Combine like terms: 0 + 1.6875 = 1.6875 -3x + x2 = 1.6875 The x term is -3x. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3x + 2.25 + x2 = 1.6875 + 2.25 Reorder the terms: 2.25 + -3x + x2 = 1.6875 + 2.25 Combine like terms: 1.6875 + 2.25 = 3.9375 2.25 + -3x + x2 = 3.9375 Factor a perfect square on the left side: (x + -1.5)(x + -1.5) = 3.9375 Calculate the square root of the right side: 1.984313483 Break this problem into two subproblems by setting (x + -1.5) equal to 1.984313483 and -1.984313483.Subproblem 1
x + -1.5 = 1.984313483 Simplifying x + -1.5 = 1.984313483 Reorder the terms: -1.5 + x = 1.984313483 Solving -1.5 + x = 1.984313483 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 1.984313483 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 1.984313483 + 1.5 x = 1.984313483 + 1.5 Combine like terms: 1.984313483 + 1.5 = 3.484313483 x = 3.484313483 Simplifying x = 3.484313483Subproblem 2
x + -1.5 = -1.984313483 Simplifying x + -1.5 = -1.984313483 Reorder the terms: -1.5 + x = -1.984313483 Solving -1.5 + x = -1.984313483 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -1.984313483 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -1.984313483 + 1.5 x = -1.984313483 + 1.5 Combine like terms: -1.984313483 + 1.5 = -0.484313483 x = -0.484313483 Simplifying x = -0.484313483Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.484313483, -0.484313483}
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