MHB Solve Quadratic Equation: -2x^2-14x-49

AI Thread Summary
The discussion addresses a misunderstanding regarding the term "quadratic equation," clarifying that the provided expression is not a quadratic equation. Participants emphasize the importance of understanding the definition of quadratic equations and suggest seeking help from a teacher for clarification. There is criticism regarding the lack of effort shown in the original post and the absence of a clear question or objective. The conversation highlights the need for proper mathematical terminology and communication in seeking assistance. Overall, the thread underscores the importance of foundational knowledge in mathematics.
Jordan1994
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Q4.) Quadratic equation:

$$\frac{-2x^2-14x-49}{x^3-7x^2}$$
 
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Sigh... NO that is not "quadratic" and it not an equation of any type. If you really do not know what a "quadratic equation" is, you need to talk to your teacher.
 
You also have not given any indication of what you want to do with this expression, nor have you shown any effort in your post (which could have at least given us the smallest of indications for the first grievance)...
 
Seemingly by some mathematical coincidence, a hexagon of sides 2,2,7,7, 11, and 11 can be inscribed in a circle of radius 7. The other day I saw a math problem on line, which they said came from a Polish Olympiad, where you compute the length x of the 3rd side which is the same as the radius, so that the sides of length 2,x, and 11 are inscribed on the arc of a semi-circle. The law of cosines applied twice gives the answer for x of exactly 7, but the arithmetic is so complex that the...
Is it possible to arrange six pencils such that each one touches the other five? If so, how? This is an adaption of a Martin Gardner puzzle only I changed it from cigarettes to pencils and left out the clues because PF folks don’t need clues. From the book “My Best Mathematical and Logic Puzzles”. Dover, 1994.

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