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Simplifying -6x2 + -17x + 7 = 0 Reorder the terms: 7 + -17x + -6x2 = 0 Solving 7 + -17x + -6x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -6 the coefficient of the squared term: Divide each side by '-6'. -1.166666667 + 2.833333333x + x2 = 0 Move the constant term to the right: Add '1.166666667' to each side of the equation. -1.166666667 + 2.833333333x + 1.166666667 + x2 = 0 + 1.166666667 Reorder the terms: -1.166666667 + 1.166666667 + 2.833333333x + x2 = 0 + 1.166666667 Combine like terms: -1.166666667 + 1.166666667 = 0.000000000 0.000000000 + 2.833333333x + x2 = 0 + 1.166666667 2.833333333x + x2 = 0 + 1.166666667 Combine like terms: 0 + 1.166666667 = 1.166666667 2.833333333x + x2 = 1.166666667 The x term is 2.833333333x. Take half its coefficient (1.416666667). Square it (2.006944445) and add it to both sides. Add '2.006944445' to each side of the equation. 2.833333333x + 2.006944445 + x2 = 1.166666667 + 2.006944445 Reorder the terms: 2.006944445 + 2.833333333x + x2 = 1.166666667 + 2.006944445 Combine like terms: 1.166666667 + 2.006944445 = 3.173611112 2.006944445 + 2.833333333x + x2 = 3.173611112 Factor a perfect square on the left side: (x + 1.416666667)(x + 1.416666667) = 3.173611112 Calculate the square root of the right side: 1.781463194 Break this problem into two subproblems by setting (x + 1.416666667) equal to 1.781463194 and -1.781463194.Subproblem 1
x + 1.416666667 = 1.781463194 Simplifying x + 1.416666667 = 1.781463194 Reorder the terms: 1.416666667 + x = 1.781463194 Solving 1.416666667 + x = 1.781463194 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.416666667' to each side of the equation. 1.416666667 + -1.416666667 + x = 1.781463194 + -1.416666667 Combine like terms: 1.416666667 + -1.416666667 = 0.000000000 0.000000000 + x = 1.781463194 + -1.416666667 x = 1.781463194 + -1.416666667 Combine like terms: 1.781463194 + -1.416666667 = 0.364796527 x = 0.364796527 Simplifying x = 0.364796527Subproblem 2
x + 1.416666667 = -1.781463194 Simplifying x + 1.416666667 = -1.781463194 Reorder the terms: 1.416666667 + x = -1.781463194 Solving 1.416666667 + x = -1.781463194 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.416666667' to each side of the equation. 1.416666667 + -1.416666667 + x = -1.781463194 + -1.416666667 Combine like terms: 1.416666667 + -1.416666667 = 0.000000000 0.000000000 + x = -1.781463194 + -1.416666667 x = -1.781463194 + -1.416666667 Combine like terms: -1.781463194 + -1.416666667 = -3.198129861 x = -3.198129861 Simplifying x = -3.198129861Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.364796527, -3.198129861}
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