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Simplifying -5x2 + 3x + 10 = 0 Reorder the terms: 10 + 3x + -5x2 = 0 Solving 10 + 3x + -5x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -5 the coefficient of the squared term: Divide each side by '-5'. -2 + -0.6x + x2 = 0 Move the constant term to the right: Add '2' to each side of the equation. -2 + -0.6x + 2 + x2 = 0 + 2 Reorder the terms: -2 + 2 + -0.6x + x2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -0.6x + x2 = 0 + 2 -0.6x + x2 = 0 + 2 Combine like terms: 0 + 2 = 2 -0.6x + x2 = 2 The x term is -0.6x. Take half its coefficient (-0.3). Square it (0.09) and add it to both sides. Add '0.09' to each side of the equation. -0.6x + 0.09 + x2 = 2 + 0.09 Reorder the terms: 0.09 + -0.6x + x2 = 2 + 0.09 Combine like terms: 2 + 0.09 = 2.09 0.09 + -0.6x + x2 = 2.09 Factor a perfect square on the left side: (x + -0.3)(x + -0.3) = 2.09 Calculate the square root of the right side: 1.445683229 Break this problem into two subproblems by setting (x + -0.3) equal to 1.445683229 and -1.445683229.Subproblem 1
x + -0.3 = 1.445683229 Simplifying x + -0.3 = 1.445683229 Reorder the terms: -0.3 + x = 1.445683229 Solving -0.3 + x = 1.445683229 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3' to each side of the equation. -0.3 + 0.3 + x = 1.445683229 + 0.3 Combine like terms: -0.3 + 0.3 = 0.0 0.0 + x = 1.445683229 + 0.3 x = 1.445683229 + 0.3 Combine like terms: 1.445683229 + 0.3 = 1.745683229 x = 1.745683229 Simplifying x = 1.745683229Subproblem 2
x + -0.3 = -1.445683229 Simplifying x + -0.3 = -1.445683229 Reorder the terms: -0.3 + x = -1.445683229 Solving -0.3 + x = -1.445683229 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3' to each side of the equation. -0.3 + 0.3 + x = -1.445683229 + 0.3 Combine like terms: -0.3 + 0.3 = 0.0 0.0 + x = -1.445683229 + 0.3 x = -1.445683229 + 0.3 Combine like terms: -1.445683229 + 0.3 = -1.145683229 x = -1.145683229 Simplifying x = -1.145683229Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.745683229, -1.145683229}
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