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Simplifying -16X2 + 10X + 3 = 0 Reorder the terms: 3 + 10X + -16X2 = 0 Solving 3 + 10X + -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'. -0.1875 + -0.625X + X2 = 0 Move the constant term to the right: Add '0.1875' to each side of the equation. -0.1875 + -0.625X + 0.1875 + X2 = 0 + 0.1875 Reorder the terms: -0.1875 + 0.1875 + -0.625X + X2 = 0 + 0.1875 Combine like terms: -0.1875 + 0.1875 = 0.0000 0.0000 + -0.625X + X2 = 0 + 0.1875 -0.625X + X2 = 0 + 0.1875 Combine like terms: 0 + 0.1875 = 0.1875 -0.625X + X2 = 0.1875 The X term is -0.625X. Take half its coefficient (-0.3125). Square it (0.09765625) and add it to both sides. Add '0.09765625' to each side of the equation. -0.625X + 0.09765625 + X2 = 0.1875 + 0.09765625 Reorder the terms: 0.09765625 + -0.625X + X2 = 0.1875 + 0.09765625 Combine like terms: 0.1875 + 0.09765625 = 0.28515625 0.09765625 + -0.625X + X2 = 0.28515625 Factor a perfect square on the left side: (X + -0.3125)(X + -0.3125) = 0.28515625 Calculate the square root of the right side: 0.534000234 Break this problem into two subproblems by setting (X + -0.3125) equal to 0.534000234 and -0.534000234.Subproblem 1
X + -0.3125 = 0.534000234 Simplifying X + -0.3125 = 0.534000234 Reorder the terms: -0.3125 + X = 0.534000234 Solving -0.3125 + X = 0.534000234 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '0.3125' to each side of the equation. -0.3125 + 0.3125 + X = 0.534000234 + 0.3125 Combine like terms: -0.3125 + 0.3125 = 0.0000 0.0000 + X = 0.534000234 + 0.3125 X = 0.534000234 + 0.3125 Combine like terms: 0.534000234 + 0.3125 = 0.846500234 X = 0.846500234 Simplifying X = 0.846500234Subproblem 2
X + -0.3125 = -0.534000234 Simplifying X + -0.3125 = -0.534000234 Reorder the terms: -0.3125 + X = -0.534000234 Solving -0.3125 + X = -0.534000234 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '0.3125' to each side of the equation. -0.3125 + 0.3125 + X = -0.534000234 + 0.3125 Combine like terms: -0.3125 + 0.3125 = 0.0000 0.0000 + X = -0.534000234 + 0.3125 X = -0.534000234 + 0.3125 Combine like terms: -0.534000234 + 0.3125 = -0.221500234 X = -0.221500234 Simplifying X = -0.221500234Solution
The solution to the problem is based on the solutions from the subproblems. X = {0.846500234, -0.221500234}
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