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Simplifying (x2 + 4)(y2 + 4) = 0 Reorder the terms: (4 + x2)(y2 + 4) = 0 Reorder the terms: (4 + x2)(4 + y2) = 0 Multiply (4 + x2) * (4 + y2) (4(4 + y2) + x2(4 + y2)) = 0 ((4 * 4 + y2 * 4) + x2(4 + y2)) = 0 ((16 + 4y2) + x2(4 + y2)) = 0 (16 + 4y2 + (4 * x2 + y2 * x2)) = 0 (16 + 4y2 + (4x2 + x2y2)) = 0 Reorder the terms: (16 + 4x2 + x2y2 + 4y2) = 0 (16 + 4x2 + x2y2 + 4y2) = 0 Solving 16 + 4x2 + x2y2 + 4y2 = 0 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 + 4x2 + x2y2 + -16 + 4y2 = 0 + -16 Reorder the terms: 16 + -16 + 4x2 + x2y2 + 4y2 = 0 + -16 Combine like terms: 16 + -16 = 0 0 + 4x2 + x2y2 + 4y2 = 0 + -16 4x2 + x2y2 + 4y2 = 0 + -16 Combine like terms: 0 + -16 = -16 4x2 + x2y2 + 4y2 = -16 Add '-4y2' to each side of the equation. 4x2 + x2y2 + 4y2 + -4y2 = -16 + -4y2 Combine like terms: 4y2 + -4y2 = 0 4x2 + x2y2 + 0 = -16 + -4y2 4x2 + x2y2 = -16 + -4y2 Reorder the terms: 16 + 4x2 + x2y2 + 4y2 = -16 + -4y2 + 16 + 4y2 Reorder the terms: 16 + 4x2 + x2y2 + 4y2 = -16 + 16 + -4y2 + 4y2 Combine like terms: -16 + 16 = 0 16 + 4x2 + x2y2 + 4y2 = 0 + -4y2 + 4y2 16 + 4x2 + x2y2 + 4y2 = -4y2 + 4y2 Combine like terms: -4y2 + 4y2 = 0 16 + 4x2 + x2y2 + 4y2 = 0 The solution to this equation could not be determined.
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