List questions from cubics

Published on 08 Jun 2021 - 19:19

68

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Factoring into a product with three term

Published on 16 Jun 2021 - 13:48

123

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Cubic root in a quadratic number field

Published on 18 Jun 2021 - 9:19

262

Views

$\sqrt[3]{\text{something}\pm\sqrt{\text{something}}}$

Published on 22 Jun 2021 - 12:16

629

Views

Generalized denesting formula for $\sqrt[3]{A+B\sqrt{C}}$

Published on 31 Mar 2026 - 5:02

91

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What properties do have odd quadratic parabola and even cubic parabola? Were they ever described?

Published on 24 Jun 2021 - 15:15

2.2k

Views

What does$ f(f(x))=0$ mean?

Published on 29 Jun 2021 - 3:38

146

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Prove that $2a + 2ab + abc \leq 18$ when $a + b + c = 5$ where $a, b, c \in \mathbb{R}$ without calculus.

Published on 01 Apr 2026 - 18:11

120

Views

$\frac{1-a^3}{a}=\frac{1-b^3}{b}=\frac{1-c^3}{c}, a \neq b \neq c$; What is $a^3+b^3+c^3$?

Published on 02 Jul 2021 - 3:16

588

Views

Solving $X^2-6Y^2=Z^3$ in positive integers

Published on 02 Jul 2021 - 14:19

100

Views

Do there exist $n,b\in \mathbb{N}, b<n$ such that $(n-b)(n^2-b)$ divides $n^3$

Published on 05 Jul 2021 - 15:32

154

Views

Cubic equation problem $\frac{x^3}{3}-x=k$

Published on 06 Jul 2021 - 5:53

63

Views

Irreducibility testing for integral cubic polynomials

Published on 07 Jul 2021 - 9:45

112

Views

Possible equation for cubes? $N + 6\sum_{n = 1}^N \frac{n(n-1)}{2} = N^3$

Published on 12 Jul 2021 - 10:57

62

Views

Understanding the general cubic formula? ("Changing the choice of a cubic root"?)

Published on 20 Jul 2021 - 11:39

List Question

Sum of the first $n$ quadratic integers

Factoring into a product with three term

Cubic root in a quadratic number field

$\sqrt[3]{\text{something}\pm\sqrt{\text{something}}}$

Generalized denesting formula for $\sqrt[3]{A+B\sqrt{C}}$

What properties do have odd quadratic parabola and even cubic parabola? Were they ever described?

What does$ f(f(x))=0$ mean?

Prove that $2a + 2ab + abc \leq 18$ when $a + b + c = 5$ where $a, b, c \in \mathbb{R}$ without calculus.

$\frac{1-a^3}{a}=\frac{1-b^3}{b}=\frac{1-c^3}{c}, a \neq b \neq c$; What is $a^3+b^3+c^3$?

Solving $X^2-6Y^2=Z^3$ in positive integers

Do there exist $n,b\in \mathbb{N}, b<n$ such that $(n-b)(n^2-b)$ divides $n^3$

Cubic equation problem $\frac{x^3}{3}-x=k$

Irreducibility testing for integral cubic polynomials

Possible equation for cubes? $N + 6\sum_{n = 1}^N \frac{n(n-1)}{2} = N^3$

Understanding the general cubic formula? ("Changing the choice of a cubic root"?)

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