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Simplifying x2 + -30x + 12 = 0 Reorder the terms: 12 + -30x + x2 = 0 Solving 12 + -30x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-12' to each side of the equation. 12 + -30x + -12 + x2 = 0 + -12 Reorder the terms: 12 + -12 + -30x + x2 = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -30x + x2 = 0 + -12 -30x + x2 = 0 + -12 Combine like terms: 0 + -12 = -12 -30x + x2 = -12 The x term is -30x. Take half its coefficient (-15). Square it (225) and add it to both sides. Add '225' to each side of the equation. -30x + 225 + x2 = -12 + 225 Reorder the terms: 225 + -30x + x2 = -12 + 225 Combine like terms: -12 + 225 = 213 225 + -30x + x2 = 213 Factor a perfect square on the left side: (x + -15)(x + -15) = 213 Calculate the square root of the right side: 14.594519519 Break this problem into two subproblems by setting (x + -15) equal to 14.594519519 and -14.594519519.Subproblem 1
x + -15 = 14.594519519 Simplifying x + -15 = 14.594519519 Reorder the terms: -15 + x = 14.594519519 Solving -15 + x = 14.594519519 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + x = 14.594519519 + 15 Combine like terms: -15 + 15 = 0 0 + x = 14.594519519 + 15 x = 14.594519519 + 15 Combine like terms: 14.594519519 + 15 = 29.594519519 x = 29.594519519 Simplifying x = 29.594519519Subproblem 2
x + -15 = -14.594519519 Simplifying x + -15 = -14.594519519 Reorder the terms: -15 + x = -14.594519519 Solving -15 + x = -14.594519519 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + x = -14.594519519 + 15 Combine like terms: -15 + 15 = 0 0 + x = -14.594519519 + 15 x = -14.594519519 + 15 Combine like terms: -14.594519519 + 15 = 0.405480481 x = 0.405480481 Simplifying x = 0.405480481Solution
The solution to the problem is based on the solutions from the subproblems. x = {29.594519519, 0.405480481}
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