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Simplifying 16z2 + 141 = 96z Reorder the terms: 141 + 16z2 = 96z Solving 141 + 16z2 = 96z Solving for variable 'z'. Reorder the terms: 141 + -96z + 16z2 = 96z + -96z Combine like terms: 96z + -96z = 0 141 + -96z + 16z2 = 0 Begin completing the square. Divide all terms by 16 the coefficient of the squared term: Divide each side by '16'. 8.8125 + -6z + z2 = 0 Move the constant term to the right: Add '-8.8125' to each side of the equation. 8.8125 + -6z + -8.8125 + z2 = 0 + -8.8125 Reorder the terms: 8.8125 + -8.8125 + -6z + z2 = 0 + -8.8125 Combine like terms: 8.8125 + -8.8125 = 0.0000 0.0000 + -6z + z2 = 0 + -8.8125 -6z + z2 = 0 + -8.8125 Combine like terms: 0 + -8.8125 = -8.8125 -6z + z2 = -8.8125 The z term is -6z. Take half its coefficient (-3). Square it (9) and add it to both sides. Add '9' to each side of the equation. -6z + 9 + z2 = -8.8125 + 9 Reorder the terms: 9 + -6z + z2 = -8.8125 + 9 Combine like terms: -8.8125 + 9 = 0.1875 9 + -6z + z2 = 0.1875 Factor a perfect square on the left side: (z + -3)(z + -3) = 0.1875 Calculate the square root of the right side: 0.433012702 Break this problem into two subproblems by setting (z + -3) equal to 0.433012702 and -0.433012702.Subproblem 1
z + -3 = 0.433012702 Simplifying z + -3 = 0.433012702 Reorder the terms: -3 + z = 0.433012702 Solving -3 + z = 0.433012702 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + z = 0.433012702 + 3 Combine like terms: -3 + 3 = 0 0 + z = 0.433012702 + 3 z = 0.433012702 + 3 Combine like terms: 0.433012702 + 3 = 3.433012702 z = 3.433012702 Simplifying z = 3.433012702Subproblem 2
z + -3 = -0.433012702 Simplifying z + -3 = -0.433012702 Reorder the terms: -3 + z = -0.433012702 Solving -3 + z = -0.433012702 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + z = -0.433012702 + 3 Combine like terms: -3 + 3 = 0 0 + z = -0.433012702 + 3 z = -0.433012702 + 3 Combine like terms: -0.433012702 + 3 = 2.566987298 z = 2.566987298 Simplifying z = 2.566987298Solution
The solution to the problem is based on the solutions from the subproblems. z = {3.433012702, 2.566987298}
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