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Simplifying -16x2 + 33x + 2 = 18 Reorder the terms: 2 + 33x + -16x2 = 18 Solving 2 + 33x + -16x2 = 18 Solving for variable 'x'. Reorder the terms: 2 + -18 + 33x + -16x2 = 18 + -18 Combine like terms: 2 + -18 = -16 -16 + 33x + -16x2 = 18 + -18 Combine like terms: 18 + -18 = 0 -16 + 33x + -16x2 = 0 Begin completing the square. Divide all terms by -16 the coefficient of the squared term: Divide each side by '-16'. 1 + -2.0625x + x2 = 0 Move the constant term to the right: Add '-1' to each side of the equation. 1 + -2.0625x + -1 + x2 = 0 + -1 Reorder the terms: 1 + -1 + -2.0625x + x2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2.0625x + x2 = 0 + -1 -2.0625x + x2 = 0 + -1 Combine like terms: 0 + -1 = -1 -2.0625x + x2 = -1 The x term is -2.0625x. Take half its coefficient (-1.03125). Square it (1.063476563) and add it to both sides. Add '1.063476563' to each side of the equation. -2.0625x + 1.063476563 + x2 = -1 + 1.063476563 Reorder the terms: 1.063476563 + -2.0625x + x2 = -1 + 1.063476563 Combine like terms: -1 + 1.063476563 = 0.063476563 1.063476563 + -2.0625x + x2 = 0.063476563 Factor a perfect square on the left side: (x + -1.03125)(x + -1.03125) = 0.063476563 Calculate the square root of the right side: 0.251945556 Break this problem into two subproblems by setting (x + -1.03125) equal to 0.251945556 and -0.251945556.Subproblem 1
x + -1.03125 = 0.251945556 Simplifying x + -1.03125 = 0.251945556 Reorder the terms: -1.03125 + x = 0.251945556 Solving -1.03125 + x = 0.251945556 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.03125' to each side of the equation. -1.03125 + 1.03125 + x = 0.251945556 + 1.03125 Combine like terms: -1.03125 + 1.03125 = 0.00000 0.00000 + x = 0.251945556 + 1.03125 x = 0.251945556 + 1.03125 Combine like terms: 0.251945556 + 1.03125 = 1.283195556 x = 1.283195556 Simplifying x = 1.283195556Subproblem 2
x + -1.03125 = -0.251945556 Simplifying x + -1.03125 = -0.251945556 Reorder the terms: -1.03125 + x = -0.251945556 Solving -1.03125 + x = -0.251945556 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.03125' to each side of the equation. -1.03125 + 1.03125 + x = -0.251945556 + 1.03125 Combine like terms: -1.03125 + 1.03125 = 0.00000 0.00000 + x = -0.251945556 + 1.03125 x = -0.251945556 + 1.03125 Combine like terms: -0.251945556 + 1.03125 = 0.779304444 x = 0.779304444 Simplifying x = 0.779304444Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.283195556, 0.779304444}
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