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Simplifying 4y2 + 8y + 7 = 4 Reorder the terms: 7 + 8y + 4y2 = 4 Solving 7 + 8y + 4y2 = 4 Solving for variable 'y'. Reorder the terms: 7 + -4 + 8y + 4y2 = 4 + -4 Combine like terms: 7 + -4 = 3 3 + 8y + 4y2 = 4 + -4 Combine like terms: 4 + -4 = 0 3 + 8y + 4y2 = 0 Factor a trinomial. (3 + 2y)(1 + 2y) = 0Subproblem 1
Set the factor '(3 + 2y)' equal to zero and attempt to solve: Simplifying 3 + 2y = 0 Solving 3 + 2y = 0 Move all terms containing y to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 2y = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2y = 0 + -3 2y = 0 + -3 Combine like terms: 0 + -3 = -3 2y = -3 Divide each side by '2'. y = -1.5 Simplifying y = -1.5Subproblem 2
Set the factor '(1 + 2y)' equal to zero and attempt to solve: Simplifying 1 + 2y = 0 Solving 1 + 2y = 0 Move all terms containing y to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 2y = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2y = 0 + -1 2y = 0 + -1 Combine like terms: 0 + -1 = -1 2y = -1 Divide each side by '2'. y = -0.5 Simplifying y = -0.5Solution
y = {-1.5, -0.5}
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