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Simplifying 49x2 + 42x + 5 = -4 Reorder the terms: 5 + 42x + 49x2 = -4 Solving 5 + 42x + 49x2 = -4 Solving for variable 'x'. Reorder the terms: 5 + 4 + 42x + 49x2 = -4 + 4 Combine like terms: 5 + 4 = 9 9 + 42x + 49x2 = -4 + 4 Combine like terms: -4 + 4 = 0 9 + 42x + 49x2 = 0 Factor a trinomial. (3 + 7x)(3 + 7x) = 0Subproblem 1
Set the factor '(3 + 7x)' equal to zero and attempt to solve: Simplifying 3 + 7x = 0 Solving 3 + 7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 7x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 7x = 0 + -3 7x = 0 + -3 Combine like terms: 0 + -3 = -3 7x = -3 Divide each side by '7'. x = -0.4285714286 Simplifying x = -0.4285714286Subproblem 2
Set the factor '(3 + 7x)' equal to zero and attempt to solve: Simplifying 3 + 7x = 0 Solving 3 + 7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 7x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 7x = 0 + -3 7x = 0 + -3 Combine like terms: 0 + -3 = -3 7x = -3 Divide each side by '7'. x = -0.4285714286 Simplifying x = -0.4285714286Solution
x = {-0.4285714286, -0.4285714286}
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