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Simplifying 45x2 + -42x + -5 = 0 Reorder the terms: -5 + -42x + 45x2 = 0 Solving -5 + -42x + 45x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 45 the coefficient of the squared term: Divide each side by '45'. -0.1111111111 + -0.9333333333x + x2 = 0 Move the constant term to the right: Add '0.1111111111' to each side of the equation. -0.1111111111 + -0.9333333333x + 0.1111111111 + x2 = 0 + 0.1111111111 Reorder the terms: -0.1111111111 + 0.1111111111 + -0.9333333333x + x2 = 0 + 0.1111111111 Combine like terms: -0.1111111111 + 0.1111111111 = 0.0000000000 0.0000000000 + -0.9333333333x + x2 = 0 + 0.1111111111 -0.9333333333x + x2 = 0 + 0.1111111111 Combine like terms: 0 + 0.1111111111 = 0.1111111111 -0.9333333333x + x2 = 0.1111111111 The x term is -0.9333333333x. Take half its coefficient (-0.4666666667). Square it (0.2177777778) and add it to both sides. Add '0.2177777778' to each side of the equation. -0.9333333333x + 0.2177777778 + x2 = 0.1111111111 + 0.2177777778 Reorder the terms: 0.2177777778 + -0.9333333333x + x2 = 0.1111111111 + 0.2177777778 Combine like terms: 0.1111111111 + 0.2177777778 = 0.3288888889 0.2177777778 + -0.9333333333x + x2 = 0.3288888889 Factor a perfect square on the left side: (x + -0.4666666667)(x + -0.4666666667) = 0.3288888889 Calculate the square root of the right side: 0.573488351 Break this problem into two subproblems by setting (x + -0.4666666667) equal to 0.573488351 and -0.573488351.Subproblem 1
x + -0.4666666667 = 0.573488351 Simplifying x + -0.4666666667 = 0.573488351 Reorder the terms: -0.4666666667 + x = 0.573488351 Solving -0.4666666667 + x = 0.573488351 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4666666667' to each side of the equation. -0.4666666667 + 0.4666666667 + x = 0.573488351 + 0.4666666667 Combine like terms: -0.4666666667 + 0.4666666667 = 0.0000000000 0.0000000000 + x = 0.573488351 + 0.4666666667 x = 0.573488351 + 0.4666666667 Combine like terms: 0.573488351 + 0.4666666667 = 1.0401550177 x = 1.0401550177 Simplifying x = 1.0401550177Subproblem 2
x + -0.4666666667 = -0.573488351 Simplifying x + -0.4666666667 = -0.573488351 Reorder the terms: -0.4666666667 + x = -0.573488351 Solving -0.4666666667 + x = -0.573488351 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4666666667' to each side of the equation. -0.4666666667 + 0.4666666667 + x = -0.573488351 + 0.4666666667 Combine like terms: -0.4666666667 + 0.4666666667 = 0.0000000000 0.0000000000 + x = -0.573488351 + 0.4666666667 x = -0.573488351 + 0.4666666667 Combine like terms: -0.573488351 + 0.4666666667 = -0.1068216843 x = -0.1068216843 Simplifying x = -0.1068216843Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.0401550177, -0.1068216843}
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