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Question
Find the separate equation of the line represented by the following equation:
x2 - 4y2 = 0
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Solution
x2 - 4y2 = 0
∴ x2 - (2y)2 = 0
∴ (x - 2y)(x + 2y) = 0
the separate equations of the lines are
x - 2y = 0 and x + 2y = 0
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