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Simplifying 2x2 + 2x2 + -49 = 0 Reorder the terms: -49 + 2x2 + 2x2 = 0 Combine like terms: 2x2 + 2x2 = 4x2 -49 + 4x2 = 0 Solving -49 + 4x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '49' to each side of the equation. -49 + 49 + 4x2 = 0 + 49 Combine like terms: -49 + 49 = 0 0 + 4x2 = 0 + 49 4x2 = 0 + 49 Combine like terms: 0 + 49 = 49 4x2 = 49 Divide each side by '4'. x2 = 12.25 Simplifying x2 = 12.25 Take the square root of each side: x = {-3.5, 3.5}
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