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Simplifying y2 = 4y + -4 Reorder the terms: y2 = -4 + 4y Solving y2 = -4 + 4y Solving for variable 'y'. Reorder the terms: 4 + -4y + y2 = -4 + 4y + 4 + -4y Reorder the terms: 4 + -4y + y2 = -4 + 4 + 4y + -4y Combine like terms: -4 + 4 = 0 4 + -4y + y2 = 0 + 4y + -4y 4 + -4y + y2 = 4y + -4y Combine like terms: 4y + -4y = 0 4 + -4y + y2 = 0 Factor a trinomial. (2 + -1y)(2 + -1y) = 0Subproblem 1
Set the factor '(2 + -1y)' equal to zero and attempt to solve: Simplifying 2 + -1y = 0 Solving 2 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1y = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1y = 0 + -2 -1y = 0 + -2 Combine like terms: 0 + -2 = -2 -1y = -2 Divide each side by '-1'. y = 2 Simplifying y = 2Subproblem 2
Set the factor '(2 + -1y)' equal to zero and attempt to solve: Simplifying 2 + -1y = 0 Solving 2 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1y = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1y = 0 + -2 -1y = 0 + -2 Combine like terms: 0 + -2 = -2 -1y = -2 Divide each side by '-1'. y = 2 Simplifying y = 2Solution
y = {2, 2}
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