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Simplifying 2x2 + -3x + -70 = 0 Reorder the terms: -70 + -3x + 2x2 = 0 Solving -70 + -3x + 2x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -35 + -1.5x + x2 = 0 Move the constant term to the right: Add '35' to each side of the equation. -35 + -1.5x + 35 + x2 = 0 + 35 Reorder the terms: -35 + 35 + -1.5x + x2 = 0 + 35 Combine like terms: -35 + 35 = 0 0 + -1.5x + x2 = 0 + 35 -1.5x + x2 = 0 + 35 Combine like terms: 0 + 35 = 35 -1.5x + x2 = 35 The x term is -1.5x. Take half its coefficient (-0.75). Square it (0.5625) and add it to both sides. Add '0.5625' to each side of the equation. -1.5x + 0.5625 + x2 = 35 + 0.5625 Reorder the terms: 0.5625 + -1.5x + x2 = 35 + 0.5625 Combine like terms: 35 + 0.5625 = 35.5625 0.5625 + -1.5x + x2 = 35.5625 Factor a perfect square on the left side: (x + -0.75)(x + -0.75) = 35.5625 Calculate the square root of the right side: 5.963430221 Break this problem into two subproblems by setting (x + -0.75) equal to 5.963430221 and -5.963430221.Subproblem 1
x + -0.75 = 5.963430221 Simplifying x + -0.75 = 5.963430221 Reorder the terms: -0.75 + x = 5.963430221 Solving -0.75 + x = 5.963430221 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = 5.963430221 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = 5.963430221 + 0.75 x = 5.963430221 + 0.75 Combine like terms: 5.963430221 + 0.75 = 6.713430221 x = 6.713430221 Simplifying x = 6.713430221Subproblem 2
x + -0.75 = -5.963430221 Simplifying x + -0.75 = -5.963430221 Reorder the terms: -0.75 + x = -5.963430221 Solving -0.75 + x = -5.963430221 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = -5.963430221 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = -5.963430221 + 0.75 x = -5.963430221 + 0.75 Combine like terms: -5.963430221 + 0.75 = -5.213430221 x = -5.213430221 Simplifying x = -5.213430221Solution
The solution to the problem is based on the solutions from the subproblems. x = {6.713430221, -5.213430221}
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