Question

Prove that if $7^n-3^n$ is divisible by $n>1$, then $n$ must be even.

score 256 · Answer 1 · 2015-12-16 15:30:54

256

Views

Prove that if $7^n-3^n$ is divisible by $n>1$, then $n$ must be even.

Published on 16 Dec 2015 - 15:30

score 180 · Answer 2 · 2026-03-29 04:11:33

180

Views

Having trouble finding roots/factorizing a cubic equation

Published on 29 Mar 2026 - 4:11

score 117 · Answer 3 · 2015-12-18 22:49:42

117

Views

Why is the number of divisors of an integer $n$ equal to the number of factors in the factorization of the polynomial $x^n - 1$ over the integers?

Published on 18 Dec 2015 - 22:49

score 156 · Answer 4 · 2015-12-19 21:40:09

156

Views

Factoring the quartic $\left(x^{2}+x-1\right)\left(x^{2}+2x-1\right)-2sx\left(2x-1\right)^{2}$

Published on 19 Dec 2015 - 21:40

score 3.6k · Answer 5 · 2015-12-20 19:22:43

3.6k

Views

Find product of solutions of $x^6=-64$

Published on 20 Dec 2015 - 19:22

score 69 · Answer 6 · 2015-12-22 05:03:45

69

Views

factorization of a fourth degree polynomial

Published on 22 Dec 2015 - 5:03

score 205 · Answer 7 · 2015-12-22 08:20:07

205

Views

Finding integers satisfying $m^2 - n^2 = 1111$

Published on 22 Dec 2015 - 8:20

score 1.2k · Answer 8 · 2026-04-06 07:06:41

1.2k

Views

Decompose $x^4 + x^3 + 1$ into irreducible factors over $\mathbb{Z}_2$

Published on 06 Apr 2026 - 7:06

score 73 · Answer 9 · 2015-12-24 15:51:04

73

Views

Solve $ax+bx^0+\frac{c}{x}+\frac{d}{x^2}=0$ for $x$

Published on 24 Dec 2015 - 15:51

score 739 · Answer 10 · 2015-12-24 16:37:28

739

Views

Sum of factors of a huge number.

Published on 24 Dec 2015 - 16:37

score 56 · Answer 11 · 2015-12-28 17:04:16

56

Views

Limits: Can't understand this worked example

Published on 28 Dec 2015 - 17:04

score 148 · Answer 12 · 2015-12-31 08:08:45

148

Views

A ball is thrown upward from the top of a tower.If its height is described by $-t ^2+60t+700$,what is the greatest height the ball attains?

Published on 31 Dec 2015 - 8:08

score 56 · Answer 13 · 2026-04-06 08:43:11

56

Views

Factoring a polynomial which shares the same zeros as another

Published on 06 Apr 2026 - 8:43

score 74 · Answer 14 · 2016-01-01 02:40:39

74

Views

Factoring a polynomial of $4$th degree

Published on 01 Jan 2016 - 2:40

score 74 · Answer 15 · 2016-01-02 03:54:50

74

Views

Find all $\mathbb{Z}_n$ in which $x^2+2$ divides $x^5-10x+12$

Published on 02 Jan 2016 - 3:54

List Question

Prove that if $7^n-3^n$ is divisible by $n>1$, then $n$ must be even.

Having trouble finding roots/factorizing a cubic equation

Why is the number of divisors of an integer $n$ equal to the number of factors in the factorization of the polynomial $x^n - 1$ over the integers?

Factoring the quartic $\left(x^{2}+x-1\right)\left(x^{2}+2x-1\right)-2sx\left(2x-1\right)^{2}$

Find product of solutions of $x^6=-64$

factorization of a fourth degree polynomial

Finding integers satisfying $m^2 - n^2 = 1111$

Decompose $x^4 + x^3 + 1$ into irreducible factors over $\mathbb{Z}_2$

Solve $ax+bx^0+\frac{c}{x}+\frac{d}{x^2}=0$ for $x$

Sum of factors of a huge number.

Limits: Can't understand this worked example

A ball is thrown upward from the top of a tower.If its height is described by $-t ^2+60t+700$,what is the greatest height the ball attains?

Factoring a polynomial which shares the same zeros as another

Factoring a polynomial of $4$th degree

Find all $\mathbb{Z}_n$ in which $x^2+2$ divides $x^5-10x+12$

Trending Questions

Popular # Hahtags

Popular Questions