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Simplifying 4x2 = -7x + -3 Reorder the terms: 4x2 = -3 + -7x Solving 4x2 = -3 + -7x Solving for variable 'x'. Reorder the terms: 3 + 7x + 4x2 = -3 + -7x + 3 + 7x Reorder the terms: 3 + 7x + 4x2 = -3 + 3 + -7x + 7x Combine like terms: -3 + 3 = 0 3 + 7x + 4x2 = 0 + -7x + 7x 3 + 7x + 4x2 = -7x + 7x Combine like terms: -7x + 7x = 0 3 + 7x + 4x2 = 0 Factor a trinomial. (1 + x)(3 + 4x) = 0Subproblem 1
Set the factor '(1 + x)' equal to zero and attempt to solve: Simplifying 1 + x = 0 Solving 1 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + x = 0 + -1 x = 0 + -1 Combine like terms: 0 + -1 = -1 x = -1 Simplifying x = -1Subproblem 2
Set the factor '(3 + 4x)' equal to zero and attempt to solve: Simplifying 3 + 4x = 0 Solving 3 + 4x = 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 + 4x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 4x = 0 + -3 4x = 0 + -3 Combine like terms: 0 + -3 = -3 4x = -3 Divide each side by '4'. x = -0.75 Simplifying x = -0.75Solution
x = {-1, -0.75}
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