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In copying a second-degree equation to solve it, the term without x was written as 24 instead of – 24. The answers found were 4 and 6. What are the answers of the correct problem? |
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Answer» (x - 4) (x - 6) = 0 x2 - 10x + 24 = 0 The correct equation = x2 - 10x - 24 = 0 a = 1, b = 10, c = 24 b2 - 4ac = (-10)2 - 4 x 1 x 24 = 196 \(x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}=\frac{10\pm14}{2}\) x = 12, -2 The correct answer is 12, -2 |
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