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Simplifying -16x2 + 127x + -175 = 0 Reorder the terms: -175 + 127x + -16x2 = 0 Solving -175 + 127x + -16x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -16 the coefficient of the squared term: Divide each side by '-16'. 10.9375 + -7.9375x + x2 = 0 Move the constant term to the right: Add '-10.9375' to each side of the equation. 10.9375 + -7.9375x + -10.9375 + x2 = 0 + -10.9375 Reorder the terms: 10.9375 + -10.9375 + -7.9375x + x2 = 0 + -10.9375 Combine like terms: 10.9375 + -10.9375 = 0.0000 0.0000 + -7.9375x + x2 = 0 + -10.9375 -7.9375x + x2 = 0 + -10.9375 Combine like terms: 0 + -10.9375 = -10.9375 -7.9375x + x2 = -10.9375 The x term is -7.9375x. Take half its coefficient (-3.96875). Square it (15.75097656) and add it to both sides. Add '15.75097656' to each side of the equation. -7.9375x + 15.75097656 + x2 = -10.9375 + 15.75097656 Reorder the terms: 15.75097656 + -7.9375x + x2 = -10.9375 + 15.75097656 Combine like terms: -10.9375 + 15.75097656 = 4.81347656 15.75097656 + -7.9375x + x2 = 4.81347656 Factor a perfect square on the left side: (x + -3.96875)(x + -3.96875) = 4.81347656 Calculate the square root of the right side: 2.193963664 Break this problem into two subproblems by setting (x + -3.96875) equal to 2.193963664 and -2.193963664.Subproblem 1
x + -3.96875 = 2.193963664 Simplifying x + -3.96875 = 2.193963664 Reorder the terms: -3.96875 + x = 2.193963664 Solving -3.96875 + x = 2.193963664 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.96875' to each side of the equation. -3.96875 + 3.96875 + x = 2.193963664 + 3.96875 Combine like terms: -3.96875 + 3.96875 = 0.00000 0.00000 + x = 2.193963664 + 3.96875 x = 2.193963664 + 3.96875 Combine like terms: 2.193963664 + 3.96875 = 6.162713664 x = 6.162713664 Simplifying x = 6.162713664Subproblem 2
x + -3.96875 = -2.193963664 Simplifying x + -3.96875 = -2.193963664 Reorder the terms: -3.96875 + x = -2.193963664 Solving -3.96875 + x = -2.193963664 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.96875' to each side of the equation. -3.96875 + 3.96875 + x = -2.193963664 + 3.96875 Combine like terms: -3.96875 + 3.96875 = 0.00000 0.00000 + x = -2.193963664 + 3.96875 x = -2.193963664 + 3.96875 Combine like terms: -2.193963664 + 3.96875 = 1.774786336 x = 1.774786336 Simplifying x = 1.774786336Solution
The solution to the problem is based on the solutions from the subproblems. x = {6.162713664, 1.774786336}
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