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Solve the quadratic equation by factorisation method x² - 9 = 0 |
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Answer» ONG>Answer: One way to SOLVE the QUADRATIC equation x2 = 9 is to subtract 9 from both SIDES to get one side equal to 0: x2 – 9 = 0. The expression on the left can be factored: (x + 3)(x – 3) = 0. |
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