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| 1. |
)A2 = {x : x2-4x-5-0) |
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Answer» A = { x : x² - 4x - 5 = 0 } x² - 4x - 5 = 0 x² + x - 5x - 5 = 0 x ( x + 1) -5 ( x +1) = 0 (x+1) ( x - 5) = 0 So in roaster form A = { -1, 5} |
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