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Simplifying y2 + -8y + 10 = 0 Reorder the terms: 10 + -8y + y2 = 0 Solving 10 + -8y + y2 = 0 Solving for variable 'y'. Begin completing the square. Move the constant term to the right: Add '-10' to each side of the equation. 10 + -8y + -10 + y2 = 0 + -10 Reorder the terms: 10 + -10 + -8y + y2 = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -8y + y2 = 0 + -10 -8y + y2 = 0 + -10 Combine like terms: 0 + -10 = -10 -8y + y2 = -10 The y term is -8y. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8y + 16 + y2 = -10 + 16 Reorder the terms: 16 + -8y + y2 = -10 + 16 Combine like terms: -10 + 16 = 6 16 + -8y + y2 = 6 Factor a perfect square on the left side: (y + -4)(y + -4) = 6 Calculate the square root of the right side: 2.449489743 Break this problem into two subproblems by setting (y + -4) equal to 2.449489743 and -2.449489743.Subproblem 1
y + -4 = 2.449489743 Simplifying y + -4 = 2.449489743 Reorder the terms: -4 + y = 2.449489743 Solving -4 + y = 2.449489743 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + y = 2.449489743 + 4 Combine like terms: -4 + 4 = 0 0 + y = 2.449489743 + 4 y = 2.449489743 + 4 Combine like terms: 2.449489743 + 4 = 6.449489743 y = 6.449489743 Simplifying y = 6.449489743Subproblem 2
y + -4 = -2.449489743 Simplifying y + -4 = -2.449489743 Reorder the terms: -4 + y = -2.449489743 Solving -4 + y = -2.449489743 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + y = -2.449489743 + 4 Combine like terms: -4 + 4 = 0 0 + y = -2.449489743 + 4 y = -2.449489743 + 4 Combine like terms: -2.449489743 + 4 = 1.550510257 y = 1.550510257 Simplifying y = 1.550510257Solution
The solution to the problem is based on the solutions from the subproblems. y = {6.449489743, 1.550510257}
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