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Simplifying (xy + -4)(y + 4) = 0 Reorder the terms: (-4 + xy)(y + 4) = 0 Reorder the terms: (-4 + xy)(4 + y) = 0 Multiply (-4 + xy) * (4 + y) (-4(4 + y) + xy(4 + y)) = 0 ((4 * -4 + y * -4) + xy(4 + y)) = 0 ((-16 + -4y) + xy(4 + y)) = 0 (-16 + -4y + (4 * xy + y * xy)) = 0 (-16 + -4y + (4xy + xy2)) = 0 Reorder the terms: (-16 + 4xy + xy2 + -4y) = 0 (-16 + 4xy + xy2 + -4y) = 0 Solving -16 + 4xy + xy2 + -4y = 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 + 4xy + xy2 + 16 + -4y = 0 + 16 Reorder the terms: -16 + 16 + 4xy + xy2 + -4y = 0 + 16 Combine like terms: -16 + 16 = 0 0 + 4xy + xy2 + -4y = 0 + 16 4xy + xy2 + -4y = 0 + 16 Combine like terms: 0 + 16 = 16 4xy + xy2 + -4y = 16 Add '4y' to each side of the equation. 4xy + xy2 + -4y + 4y = 16 + 4y Combine like terms: -4y + 4y = 0 4xy + xy2 + 0 = 16 + 4y 4xy + xy2 = 16 + 4y Reorder the terms: -16 + 4xy + xy2 + -4y = 16 + 4y + -16 + -4y Reorder the terms: -16 + 4xy + xy2 + -4y = 16 + -16 + 4y + -4y Combine like terms: 16 + -16 = 0 -16 + 4xy + xy2 + -4y = 0 + 4y + -4y -16 + 4xy + xy2 + -4y = 4y + -4y Combine like terms: 4y + -4y = 0 -16 + 4xy + xy2 + -4y = 0 The solution to this equation could not be determined.
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