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Simplifying -16x2 + 150x + 5 = 0 Reorder the terms: 5 + 150x + -16x2 = 0 Solving 5 + 150x + -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'. -0.3125 + -9.375x + x2 = 0 Move the constant term to the right: Add '0.3125' to each side of the equation. -0.3125 + -9.375x + 0.3125 + x2 = 0 + 0.3125 Reorder the terms: -0.3125 + 0.3125 + -9.375x + x2 = 0 + 0.3125 Combine like terms: -0.3125 + 0.3125 = 0.0000 0.0000 + -9.375x + x2 = 0 + 0.3125 -9.375x + x2 = 0 + 0.3125 Combine like terms: 0 + 0.3125 = 0.3125 -9.375x + x2 = 0.3125 The x term is -9.375x. Take half its coefficient (-4.6875). Square it (21.97265625) and add it to both sides. Add '21.97265625' to each side of the equation. -9.375x + 21.97265625 + x2 = 0.3125 + 21.97265625 Reorder the terms: 21.97265625 + -9.375x + x2 = 0.3125 + 21.97265625 Combine like terms: 0.3125 + 21.97265625 = 22.28515625 21.97265625 + -9.375x + x2 = 22.28515625 Factor a perfect square on the left side: (x + -4.6875)(x + -4.6875) = 22.28515625 Calculate the square root of the right side: 4.72071565 Break this problem into two subproblems by setting (x + -4.6875) equal to 4.72071565 and -4.72071565.Subproblem 1
x + -4.6875 = 4.72071565 Simplifying x + -4.6875 = 4.72071565 Reorder the terms: -4.6875 + x = 4.72071565 Solving -4.6875 + x = 4.72071565 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.6875' to each side of the equation. -4.6875 + 4.6875 + x = 4.72071565 + 4.6875 Combine like terms: -4.6875 + 4.6875 = 0.0000 0.0000 + x = 4.72071565 + 4.6875 x = 4.72071565 + 4.6875 Combine like terms: 4.72071565 + 4.6875 = 9.40821565 x = 9.40821565 Simplifying x = 9.40821565Subproblem 2
x + -4.6875 = -4.72071565 Simplifying x + -4.6875 = -4.72071565 Reorder the terms: -4.6875 + x = -4.72071565 Solving -4.6875 + x = -4.72071565 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.6875' to each side of the equation. -4.6875 + 4.6875 + x = -4.72071565 + 4.6875 Combine like terms: -4.6875 + 4.6875 = 0.0000 0.0000 + x = -4.72071565 + 4.6875 x = -4.72071565 + 4.6875 Combine like terms: -4.72071565 + 4.6875 = -0.03321565 x = -0.03321565 Simplifying x = -0.03321565Solution
The solution to the problem is based on the solutions from the subproblems. x = {9.40821565, -0.03321565}
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