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Simplifying x2 + -16x + 50 = 21 Reorder the terms: 50 + -16x + x2 = 21 Solving 50 + -16x + x2 = 21 Solving for variable 'x'. Reorder the terms: 50 + -21 + -16x + x2 = 21 + -21 Combine like terms: 50 + -21 = 29 29 + -16x + x2 = 21 + -21 Combine like terms: 21 + -21 = 0 29 + -16x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-29' to each side of the equation. 29 + -16x + -29 + x2 = 0 + -29 Reorder the terms: 29 + -29 + -16x + x2 = 0 + -29 Combine like terms: 29 + -29 = 0 0 + -16x + x2 = 0 + -29 -16x + x2 = 0 + -29 Combine like terms: 0 + -29 = -29 -16x + x2 = -29 The x term is -16x. Take half its coefficient (-8). Square it (64) and add it to both sides. Add '64' to each side of the equation. -16x + 64 + x2 = -29 + 64 Reorder the terms: 64 + -16x + x2 = -29 + 64 Combine like terms: -29 + 64 = 35 64 + -16x + x2 = 35 Factor a perfect square on the left side: (x + -8)(x + -8) = 35 Calculate the square root of the right side: 5.916079783 Break this problem into two subproblems by setting (x + -8) equal to 5.916079783 and -5.916079783.Subproblem 1
x + -8 = 5.916079783 Simplifying x + -8 = 5.916079783 Reorder the terms: -8 + x = 5.916079783 Solving -8 + x = 5.916079783 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + x = 5.916079783 + 8 Combine like terms: -8 + 8 = 0 0 + x = 5.916079783 + 8 x = 5.916079783 + 8 Combine like terms: 5.916079783 + 8 = 13.916079783 x = 13.916079783 Simplifying x = 13.916079783Subproblem 2
x + -8 = -5.916079783 Simplifying x + -8 = -5.916079783 Reorder the terms: -8 + x = -5.916079783 Solving -8 + x = -5.916079783 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + x = -5.916079783 + 8 Combine like terms: -8 + 8 = 0 0 + x = -5.916079783 + 8 x = -5.916079783 + 8 Combine like terms: -5.916079783 + 8 = 2.083920217 x = 2.083920217 Simplifying x = 2.083920217Solution
The solution to the problem is based on the solutions from the subproblems. x = {13.916079783, 2.083920217}
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