query: Why does $2+2=5$ in this example?
positive_passages.docid: 3712
positive_passages.text: Why $\sqrt{-1 \cdot {-1}} \neq \sqrt{-1}^2$?
negative_passages.docid: 92968
negative_passages.text: how many element of order 2 and 5 are there
negative_passages.docid: 49923
negative_passages.text: Why does $0.75 \times 1.25$ equal $0.93$ and not $1$?
negative_passages.docid: 121918
negative_passages.text: Why is $5^{n+1}+2\cdot 3^n+1$ a multiple of $8$ for every natural number $n$?
negative_passages.docid: 113334
negative_passages.text: If $x+\frac{1}{x}=\frac{1+\sqrt{5}}{2}$ then $x^{2000}+\frac{1}{x^{2000}}= $?
negative_passages.docid: 60140
negative_passages.text: Proof of Equivalence Relation $R=\{(a,b)\in\Bbb N^2: 5\mid (2a+3b)\}$
negative_passages.docid: 101519
negative_passages.text: What is the condition for example $(number^c)^b=number^{cb}$ to be true?
negative_passages.docid: 55077
negative_passages.text: prove that $2\sqrt5 +\sqrt{11}$ is irrational
negative_passages.docid: 63505
negative_passages.text: Proving that $ 2 $ is the only real solution of $ 3^x+4^x=5^x $
negative_passages.docid: 11928
negative_passages.text: Why isn't "k" incremented in the statement "m = ++i && ++j || ++k" when "++i&&++j" evaluates to true?
negative_passages.docid: 52800
negative_passages.text: Show that $z^5-1=(z-1)(z^2+2z\cos{\pi \over 5}+1)(z^2-2z\cos{2\pi \over 5}+1)$
negative_passages.docid: 62072
negative_passages.text: Is $2+2=4$ an identity?
negative_passages.docid: 70522
negative_passages.text: $y^2 = \frac{x^5 - 1}{x-1}$ & $x,y \in \mathbb{Z}$
negative_passages.docid: 71534
negative_passages.text: Combinatorial explanation for why $n^2 = {n \choose 2} + {n+1 \choose 2}$
negative_passages.docid: 137808
negative_passages.text: $n^2 + 3n +5$ is not divisible by $121$
negative_passages.docid: 41645
negative_passages.text: Checking my understanding: $1 - 1 + 1 - 1 + 1 - ... = \frac{1}{2}$
negative_passages.docid: 10400
negative_passages.text: Why adding these two double does not give correct answer?