Question

Let $m$ and $n$ be positive integers such that $m(n-m)=-11n+8$ . Find the sum of all possible values of $m-n$.

score 923 · Answer 1 · 2019-08-17 19:26:38

923

Views

Let $m$ and $n$ be positive integers such that $m(n-m)=-11n+8$ . Find the sum of all possible values of $m-n$.

Published on 17 Aug 2019 - 19:26

score 1.4k · Answer 2 · 2026-03-27 14:58:35

1.4k

Views

Quadratic matrix equation $XAX=B$

Published on 27 Mar 2026 - 14:58

score 99 · Answer 3 · 2019-08-18 15:22:40

99

Views

System of three non-linear equations

Published on 18 Aug 2019 - 15:22

score 4k · Answer 4 · 2019-08-19 17:26:50

4k

Views

Steps and explanation for solving $z^2-(3-2i)z+(5-5i)=0$?

Published on 19 Aug 2019 - 17:26

score 717 · Answer 5 · 2026-03-28 01:35:22

717

Views

Can you factor a difference of squares even when the constant isn't a perfect square?

Published on 28 Mar 2026 - 1:35

score 57 · Answer 6 · 2019-08-21 19:06:27

57

Views

Range of $f(x)=[x^2 - 3x]$

Published on 21 Aug 2019 - 19:06

score 51 · Answer 7 · 2026-03-29 12:41:09

51

Views

Radius of circle included in a certain area.

Published on 29 Mar 2026 - 12:41

score 325 · Answer 8 · 2026-03-27 15:07:43

325

Views

Existence of a symmetric matrix $X$ such that $XBX = A$

Published on 27 Mar 2026 - 15:07

score 398 · Answer 9 · 2026-03-29 07:00:29

398

Views

How to find stationary values of $\frac{1}{2}x^TAx-x^Tb$?

Published on 29 Mar 2026 - 7:00

score 313 · Answer 10 · 2026-03-28 17:04:54

313

Views

If $x$ and $y$ are real numbers such that $4x^2 + y^2 = 4x - 2y + 7$, find the maximum value of $5x+6y$.

Published on 28 Mar 2026 - 17:04

score 456 · Answer 11 · 2019-08-24 20:06:52

456

Views

How many ordered triples $(x,y,z)$ of real numbers are there such that $x+y^2=z^3$, $x^2+y^3=z^4$, and $x^3+y^4=z^5$

Published on 24 Aug 2019 - 20:06

score 56 · Answer 12 · 2019-08-24 22:00:39

56

Views

Squared triangular number

Published on 24 Aug 2019 - 22:00

score 168 · Answer 13 · 2019-08-25 08:19:09

168

Views

Find expressions, in terms of m and n, for the roots of the equation: (3m-x)/(x+n)=2(x+m)/(x-n)

Published on 25 Aug 2019 - 8:19

score 182 · Answer 14 · 2019-08-25 09:56:41

182

Views

Prove that $b^2\gt 4ac \implies ax^2+bx+c=0$ has two distinct real roots.

Published on 25 Aug 2019 - 9:56

score 471 · Answer 15 · 2019-08-26 22:09:32

471

Views

To find a point of intersection between 2 functions, why is the solution to make each function equal the other?

Published on 26 Aug 2019 - 22:09

List Question

Let $m$ and $n$ be positive integers such that $m(n-m)=-11n+8$ . Find the sum of all possible values of $m-n$.

Quadratic matrix equation $XAX=B$

System of three non-linear equations

Steps and explanation for solving $z^2-(3-2i)z+(5-5i)=0$?

Can you factor a difference of squares even when the constant isn't a perfect square?

Range of $f(x)=[x^2 - 3x]$

Radius of circle included in a certain area.

Existence of a symmetric matrix $X$ such that $XBX = A$

How to find stationary values of $\frac{1}{2}x^TAx-x^Tb$?

If $x$ and $y$ are real numbers such that $4x^2 + y^2 = 4x - 2y + 7$, find the maximum value of $5x+6y$.

How many ordered triples $(x,y,z)$ of real numbers are there such that $x+y^2=z^3$, $x^2+y^3=z^4$, and $x^3+y^4=z^5$

Squared triangular number

Find expressions, in terms of m and n, for the roots of the equation: (3m-x)/(x+n)=2(x+m)/(x-n)

Prove that $b^2\gt 4ac \implies ax^2+bx+c=0$ has two distinct real roots.

To find a point of intersection between 2 functions, why is the solution to make each function equal the other?

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