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Simplifying (7y2 + -1)(7y2 + 1) = 0 Reorder the terms: (-1 + 7y2)(7y2 + 1) = 0 Reorder the terms: (-1 + 7y2)(1 + 7y2) = 0 Multiply (-1 + 7y2) * (1 + 7y2) (-1(1 + 7y2) + 7y2 * (1 + 7y2)) = 0 ((1 * -1 + 7y2 * -1) + 7y2 * (1 + 7y2)) = 0 ((-1 + -7y2) + 7y2 * (1 + 7y2)) = 0 (-1 + -7y2 + (1 * 7y2 + 7y2 * 7y2)) = 0 (-1 + -7y2 + (7y2 + 49y4)) = 0 Combine like terms: -7y2 + 7y2 = 0 (-1 + 0 + 49y4) = 0 (-1 + 49y4) = 0 Solving -1 + 49y4 = 0 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + 49y4 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 49y4 = 0 + 1 49y4 = 0 + 1 Combine like terms: 0 + 1 = 1 49y4 = 1 Divide each side by '49'. y4 = 0.02040816327 Simplifying y4 = 0.02040816327 Reorder the terms: -0.02040816327 + y4 = 0.02040816327 + -0.02040816327 Combine like terms: 0.02040816327 + -0.02040816327 = 0.00000000000 -0.02040816327 + y4 = 0.00000000000 The solution to this equation could not be determined.
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