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ゲストIt seems like every few weeks, a math problem gets passed around that starts an argument and goes viral because no one can agree on the answer. And it almost always involves PEMDAS. Take into account that there must be a correct answer—one of the four answers provided on the test. Therefore, in factoring polynomial questions, if you simply cannot see how to solve the problem, you can always take it the other way around—approach the answers and multiply each of the displayed factors. One of those products must yield the polynomial in the question. Q-5: Modify the infixToPostfix function so that it can convert the following expression: 5 * 3 ** (4 – 2). Run the function on the expression and paste the answer here: Figure 11: A More Complex Example of Evaluation¶ Elided operators seem to bind “tighter” than others, but not everyone agrees on this. This tends to be the fundamental problem with this entire class of “trick” questions. Most are very comfortable with agreeing upon $8\div 4\times x$, but get less comfortable with $8\div 4x$. Situations like $\frac$ show up often enough to want to be able to phrase them with a short parentheses-free notation. Whether this want is strong enough to change your interpretation is up to you.
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