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Solve : 21x = 196 - x^2 |
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Answer» Step-by-step explanation: x² + 21X - 196 = 0 x² + 28X - 7x - 196 = 0 x(x + 28) - 7(x + 28) = 0 (x + 28) (x - 7) = 0 x = -28 , 7 |
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