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Answers for “如何简化像 18/12 或 16/12 这样的分数?”

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To substitute coefficients into the quadratic formula, first identify aa, bb, and cc from the standard form ax2+bx+c=0ax^2 + bx + c = 0. Replace aa, bb, and cc in the formula x=−b±b2−4ac2ax = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} with their numerical values.

Conditions: The equation is in standard form ax2+bx+c=0ax^2 + bx + c = 0.; The coefficients aa, bb, and cc have been correctly identified.

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Yes, consider the equation 6x2−17x+12=06x^2 - 17x + 12 = 0. The coefficients are a=6a=6, b=−17b=-17, and c=12c=12.

Conditions: The quadratic equation has at least one negative coefficient.; The equation is in standard form ax2+bx+c=0ax^2 + bx + c = 0.