Question

How do I find a cubic equation given only one root?

score 190 · Answer 1 · 2026-02-23 06:35:35

190

Views

How do I find a cubic equation given only one root?

Published on 23 Feb 2026 - 6:35

score 105 · Answer 2 · 2026-02-23 06:34:59

105

Views

Solving a cubic using triple angle for cos (i.e $\cos(3A)$)

Published on 23 Feb 2026 - 6:34

score 97 · Answer 3 · 2023-06-26 14:13:22

97

Views

Convert an expression with radicals into simpler form

Published on 26 Jun 2023 - 14:13

score 119 · Answer 4 · 2026-02-23 06:34:05

119

Views

Can I use this algorithm for solving cubic equations?

Published on 23 Feb 2026 - 6:34

score 24 · Answer 5 · 2026-03-25 23:42:29

Let a, b, c, d be complex numbers satisfying $a+b+c+d=a^3+b^3+c^3+d^3=0$. Prove that a pair of the a, b, c, d must add up to 0

score 151 · Answer 6 · 2023-07-02 19:42:24

151

Views

Prove irreducible cubic polynomial over $\mathbb{Q}$ with a cyclic galois group has real roots

Published on 02 Jul 2023 - 19:42

score 119 · Answer 7 · 2023-07-25 03:48:51

119

Views

If the complex roots of $x^3-x-2=0$ are $r\pm si$, and $As^6 +Bs^4 + Cs^2 =26$ for integers $A$, $B$, $C$, find $A+B+C$

Published on 25 Jul 2023 - 3:48

score 109 · Answer 8 · 2023-07-27 09:21:42

109

Views

Simplifying Coefficients of a Cubic Polynomial with Complex Roots

Published on 27 Jul 2023 - 9:21

score 50 · Answer 9 · 2023-08-05 21:56:12

50

Views

Numerical Analysis - natural cubic spline and clamped cubin spline

Published on 05 Aug 2023 - 21:56

score 138 · Answer 10 · 2026-02-23 06:36:26

138

Views

How to solve $x^3−x+1=0$

Published on 23 Feb 2026 - 6:36

score 174 · Answer 11 · 2026-03-25 16:14:03

174

Views

Prove that $\mathbb Q(\cos\tfrac\pi7)\neq\mathbb Q(\cos\tfrac\pi9)$

Published on 25 Mar 2026 - 16:14

score 68 · Answer 12 · 2026-03-25 22:10:49

68

Views

Finding rational coefficients of a cubic polynomial that fits 4 data points that have been floored to an integer

Published on 25 Mar 2026 - 22:10

score 77 · Answer 13 · 2023-08-13 00:00:49

77

Views

Why Can't Cubic Equation Have Fractional Solutions When Its Coefficients Are All Integers?

Published on 13 Aug 2023 - 0:00

score 117 · Answer 14 · 2023-09-07 09:17:32

117

Views

Prime numbers $p$ such that $7p+1$ is a cube

Published on 07 Sep 2023 - 9:17

score 44 · Answer 15 · 2026-03-26 14:20:25

44

Views

Proof of conditions for polynomials

Published on 26 Mar 2026 - 14:20

List Question

How do I find a cubic equation given only one root?

Solving a cubic using triple angle for cos (i.e $\cos(3A)$)

Convert an expression with radicals into simpler form

Can I use this algorithm for solving cubic equations?

Let a, b, c, d be complex numbers satisfying $a+b+c+d=a^3+b^3+c^3+d^3=0$. Prove that a pair of the a, b, c, d must add up to 0

Prove irreducible cubic polynomial over $\mathbb{Q}$ with a cyclic galois group has real roots

If the complex roots of $x^3-x-2=0$ are $r\pm si$, and $As^6 +Bs^4 + Cs^2 =26$ for integers $A$, $B$, $C$, find $A+B+C$

Simplifying Coefficients of a Cubic Polynomial with Complex Roots

Numerical Analysis - natural cubic spline and clamped cubin spline

How to solve $x^3−x+1=0$

Prove that $\mathbb Q(\cos\tfrac\pi7)\neq\mathbb Q(\cos\tfrac\pi9)$

Finding rational coefficients of a cubic polynomial that fits 4 data points that have been floored to an integer

Why Can't Cubic Equation Have Fractional Solutions When Its Coefficients Are All Integers?

Prime numbers $p$ such that $7p+1$ is a cube

Proof of conditions for polynomials

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