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Simplifying 16x2 + 9x2 + 20 = 0 Reorder the terms: 20 + 16x2 + 9x2 = 0 Combine like terms: 16x2 + 9x2 = 25x2 20 + 25x2 = 0 Solving 20 + 25x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + 25x2 = 0 + -20 Combine like terms: 20 + -20 = 0 0 + 25x2 = 0 + -20 25x2 = 0 + -20 Combine like terms: 0 + -20 = -20 25x2 = -20 Divide each side by '25'. x2 = -0.8 Simplifying x2 = -0.8 Reorder the terms: 0.8 + x2 = -0.8 + 0.8 Combine like terms: -0.8 + 0.8 = 0.0 0.8 + x2 = 0.0 The solution to this equation could not be determined.
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