Why is the solution to $\sqrt{6-5x}=x$ only $x=1$ and not $x=-6$?
1522
Is $\sqrt{64}$ considered $8$? or is it $8,-8$?
47325
Limit of quotients with square roots: $\lim_{x\to2} \frac{\sqrt{6-x}-2}{\sqrt{3-x}-1}$
107816
Solving a six-degree polynomial of the form $ax^6+bx^3+g$.
16400
Find all solutions to the equation $(z+1)^6=z^6$. Express the solutions in simplified rectangular form. Hint: Clearly $z=0$ is not a solution.
42699
Solve for $f(x)$ if $f(f(x))=6x-f(x)$
6721
math fallacy problem: $-1= (-1)^3 = (-1)^{6/2} = \sqrt{(-1)^6}= 1$?
69309
How do I simplify and evaluate the limit of $(\sqrt x - 1)/(\sqrt[3] x - 1)$ as $x\to 1$?
81875
why is $\sqrt{-1} = i$ and not $\pm i$?
129521
Is $\sqrt[3]{5}$ in $\mathbb Q(\sqrt[3]{2})$?
3712
Why $\sqrt{-1 \cdot {-1}} \neq \sqrt{-1}^2$?
29989
Solve $x^2+5x+6 \equiv 0 \pmod{\!11\cdot 17}$
13363
Why does an argument similiar to 0.999...=1 show 999...=-1?
109706
Fast way to come up with solutions to $x(x-1)(x-2)(x-3)=1$?
79638
Number of solns of $x^6+x=a$ in $\mathbb{F}_{2^m}$, where $m\geq 3$ is odd is same as number of solns of $x^2+ax+1=0$
53958
General misconception about $\sqrt x$
81381
Why does the domain and range of $\sqrt x$ contain only positive real numbers?
41655
Simple equation for $x$ but getting no proof.