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Simplifying 20x2 + 4 + -1[4(x2 + -3) + 9] = 0 Reorder the terms: 20x2 + 4 + -1[4(-3 + x2) + 9] = 0 20x2 + 4 + -1[(-3 * 4 + x2 * 4) + 9] = 0 20x2 + 4 + -1[(-12 + 4x2) + 9] = 0 Reorder the terms: 20x2 + 4 + -1[-12 + 9 + 4x2] = 0 Combine like terms: -12 + 9 = -3 20x2 + 4 + -1[-3 + 4x2] = 0 20x2 + 4 + [-3 * -1 + 4x2 * -1] = 0 20x2 + 4 + [3 + -4x2] = 0 Reorder the terms: 4 + 3 + 20x2 + -4x2 = 0 Combine like terms: 4 + 3 = 7 7 + 20x2 + -4x2 = 0 Combine like terms: 20x2 + -4x2 = 16x2 7 + 16x2 = 0 Solving 7 + 16x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 16x2 = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 16x2 = 0 + -7 16x2 = 0 + -7 Combine like terms: 0 + -7 = -7 16x2 = -7 Divide each side by '16'. x2 = -0.4375 Simplifying x2 = -0.4375 Reorder the terms: 0.4375 + x2 = -0.4375 + 0.4375 Combine like terms: -0.4375 + 0.4375 = 0.0000 0.4375 + x2 = 0.0000 The solution to this equation could not be determined.
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