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Simplifying x2 + 8x2 + 16 = 9 Reorder the terms: 16 + x2 + 8x2 = 9 Combine like terms: x2 + 8x2 = 9x2 16 + 9x2 = 9 Solving 16 + 9x2 = 9 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-16' to each side of the equation. 16 + -16 + 9x2 = 9 + -16 Combine like terms: 16 + -16 = 0 0 + 9x2 = 9 + -16 9x2 = 9 + -16 Combine like terms: 9 + -16 = -7 9x2 = -7 Divide each side by '9'. x2 = -0.7777777778 Simplifying x2 = -0.7777777778 Reorder the terms: 0.7777777778 + x2 = -0.7777777778 + 0.7777777778 Combine like terms: -0.7777777778 + 0.7777777778 = 0.0000000000 0.7777777778 + x2 = 0.0000000000 The solution to this equation could not be determined.
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