Answer :
Final answer:
The presented equation is a fourth-degree polynomial equation in Mathematics subject. It can be solved using a variety of mathematical methods including factoring, completing the square, or by applying the quadratic formula.
Explanation:
The subject of this question is the quadratic equation represented as x^4-9x^3+23x^2-81x+126. This equation is in the form of , ax^4 + bx^3 + cx^2 + dx + e, where 'a', 'b', 'c', 'd', and 'e' are coefficients, and 'x' is the variable. The coefficients could be found experimentally in many cases.
To solve for 'x', you could use a range of mathematical methods such as factoring, completing the square, or applying the quadratic formula, which is -b ± √(b^2 - 4ac) / (2a) for equations in the form ax^2 + bx + c = 0. Depending on the question, either of these solutions might be applicable.
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