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Simplifying 4x(2x + -3) = -3 Reorder the terms: 4x(-3 + 2x) = -3 (-3 * 4x + 2x * 4x) = -3 (-12x + 8x2) = -3 Solving -12x + 8x2 = -3 Solving for variable 'x'. Reorder the terms: 3 + -12x + 8x2 = -3 + 3 Combine like terms: -3 + 3 = 0 3 + -12x + 8x2 = 0 Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. 0.375 + -1.5x + x2 = 0 Move the constant term to the right: Add '-0.375' to each side of the equation. 0.375 + -1.5x + -0.375 + x2 = 0 + -0.375 Reorder the terms: 0.375 + -0.375 + -1.5x + x2 = 0 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + -1.5x + x2 = 0 + -0.375 -1.5x + x2 = 0 + -0.375 Combine like terms: 0 + -0.375 = -0.375 -1.5x + x2 = -0.375 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 = -0.375 + 0.5625 Reorder the terms: 0.5625 + -1.5x + x2 = -0.375 + 0.5625 Combine like terms: -0.375 + 0.5625 = 0.1875 0.5625 + -1.5x + x2 = 0.1875 Factor a perfect square on the left side: (x + -0.75)(x + -0.75) = 0.1875 Calculate the square root of the right side: 0.433012702 Break this problem into two subproblems by setting (x + -0.75) equal to 0.433012702 and -0.433012702.Subproblem 1
x + -0.75 = 0.433012702 Simplifying x + -0.75 = 0.433012702 Reorder the terms: -0.75 + x = 0.433012702 Solving -0.75 + x = 0.433012702 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 = 0.433012702 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = 0.433012702 + 0.75 x = 0.433012702 + 0.75 Combine like terms: 0.433012702 + 0.75 = 1.183012702 x = 1.183012702 Simplifying x = 1.183012702Subproblem 2
x + -0.75 = -0.433012702 Simplifying x + -0.75 = -0.433012702 Reorder the terms: -0.75 + x = -0.433012702 Solving -0.75 + x = -0.433012702 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 = -0.433012702 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = -0.433012702 + 0.75 x = -0.433012702 + 0.75 Combine like terms: -0.433012702 + 0.75 = 0.316987298 x = 0.316987298 Simplifying x = 0.316987298Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.183012702, 0.316987298}
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