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Simplifying (5v + 7)(1 + v) = 0 Reorder the terms: (7 + 5v)(1 + v) = 0 Multiply (7 + 5v) * (1 + v) (7(1 + v) + 5v * (1 + v)) = 0 ((1 * 7 + v * 7) + 5v * (1 + v)) = 0 ((7 + 7v) + 5v * (1 + v)) = 0 (7 + 7v + (1 * 5v + v * 5v)) = 0 (7 + 7v + (5v + 5v2)) = 0 Combine like terms: 7v + 5v = 12v (7 + 12v + 5v2) = 0 Solving 7 + 12v + 5v2 = 0 Solving for variable 'v'. Factor a trinomial. (7 + 5v)(1 + v) = 0Subproblem 1
Set the factor '(7 + 5v)' equal to zero and attempt to solve: Simplifying 7 + 5v = 0 Solving 7 + 5v = 0 Move all terms containing v to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 5v = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 5v = 0 + -7 5v = 0 + -7 Combine like terms: 0 + -7 = -7 5v = -7 Divide each side by '5'. v = -1.4 Simplifying v = -1.4Subproblem 2
Set the factor '(1 + v)' equal to zero and attempt to solve: Simplifying 1 + v = 0 Solving 1 + v = 0 Move all terms containing v to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + v = 0 + -1 Combine like terms: 1 + -1 = 0 0 + v = 0 + -1 v = 0 + -1 Combine like terms: 0 + -1 = -1 v = -1 Simplifying v = -1Solution
v = {-1.4, -1}
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