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Simplifying 2x2 + 9 = x2 + 36 Reorder the terms: 9 + 2x2 = x2 + 36 Reorder the terms: 9 + 2x2 = 36 + x2 Solving 9 + 2x2 = 36 + x2 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x2' to each side of the equation. 9 + 2x2 + -1x2 = 36 + x2 + -1x2 Combine like terms: 2x2 + -1x2 = 1x2 9 + 1x2 = 36 + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 9 + 1x2 = 36 + 0 9 + 1x2 = 36 Add '-9' to each side of the equation. 9 + -9 + 1x2 = 36 + -9 Combine like terms: 9 + -9 = 0 0 + 1x2 = 36 + -9 1x2 = 36 + -9 Combine like terms: 36 + -9 = 27 1x2 = 27 Divide each side by '1'. x2 = 27 Simplifying x2 = 27 Take the square root of each side: x = {-5.196152423, 5.196152423}
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