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Simplifying 3 = 2x2 + -10x Reorder the terms: 3 = -10x + 2x2 Solving 3 = -10x + 2x2 Solving for variable 'x'. Reorder the terms: 3 + 10x + -2x2 = -10x + 10x + 2x2 + -2x2 Combine like terms: -10x + 10x = 0 3 + 10x + -2x2 = 0 + 2x2 + -2x2 3 + 10x + -2x2 = 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 3 + 10x + -2x2 = 0 Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. -1.5 + -5x + x2 = 0 Move the constant term to the right: Add '1.5' to each side of the equation. -1.5 + -5x + 1.5 + x2 = 0 + 1.5 Reorder the terms: -1.5 + 1.5 + -5x + x2 = 0 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + -5x + x2 = 0 + 1.5 -5x + x2 = 0 + 1.5 Combine like terms: 0 + 1.5 = 1.5 -5x + x2 = 1.5 The x term is -5x. 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. -5x + 6.25 + x2 = 1.5 + 6.25 Reorder the terms: 6.25 + -5x + x2 = 1.5 + 6.25 Combine like terms: 1.5 + 6.25 = 7.75 6.25 + -5x + x2 = 7.75 Factor a perfect square on the left side: (x + -2.5)(x + -2.5) = 7.75 Calculate the square root of the right side: 2.783882181 Break this problem into two subproblems by setting (x + -2.5) equal to 2.783882181 and -2.783882181.Subproblem 1
x + -2.5 = 2.783882181 Simplifying x + -2.5 = 2.783882181 Reorder the terms: -2.5 + x = 2.783882181 Solving -2.5 + x = 2.783882181 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = 2.783882181 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = 2.783882181 + 2.5 x = 2.783882181 + 2.5 Combine like terms: 2.783882181 + 2.5 = 5.283882181 x = 5.283882181 Simplifying x = 5.283882181Subproblem 2
x + -2.5 = -2.783882181 Simplifying x + -2.5 = -2.783882181 Reorder the terms: -2.5 + x = -2.783882181 Solving -2.5 + x = -2.783882181 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = -2.783882181 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = -2.783882181 + 2.5 x = -2.783882181 + 2.5 Combine like terms: -2.783882181 + 2.5 = -0.283882181 x = -0.283882181 Simplifying x = -0.283882181Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.283882181, -0.283882181}
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