Question

An inequality with $x,y,z \ge -1$ and $x+y+z=1$

score 188 · Answer 1 · 2026-04-13 17:11:34

An inequality with $x,y,z \ge -1$ and $x+y+z=1$

Published on 13 Apr 2026 - 17:11

score 334 · Answer 2 · 2026-04-18 01:51:06

Why does this alternative to the Quadratic Formula not always work? $x=\frac1a\left(-b+\sqrt{\frac12(b^2-2ac\pm b\sqrt{b^2-4ac})}\right)$

score 73 · Answer 3 · 2026-04-09 14:10:56

73

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manipulation of quadratic equation from roots

Published on 09 Apr 2026 - 14:10

score 79 · Answer 4 · 2026-04-12 06:56:41

79

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Whats going on in this quadratic?

Published on 12 Apr 2026 - 6:56

score 1k · Answer 5 · 2026-04-15 18:47:02

1k

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If $\alpha$ be a multiple root of the order 3 of the equation $x⁴+bx²+cx+d=0$ then $α= 8d/3c$

Published on 15 Apr 2026 - 18:47

score 56 · Answer 6 · 2026-04-11 19:09:11

56

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Don't understand the step in Deriving quadratic equation

Published on 11 Apr 2026 - 19:09

score 193 · Answer 7 · 2026-04-17 12:01:09

193

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Quadratic Functions: Does anyone know how to solve this?

Published on 17 Apr 2026 - 12:01

score 6.8k · Answer 8 · 2026-04-11 17:15:14

6.8k

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Newton's Identity

Published on 11 Apr 2026 - 17:15

score 94 · Answer 9 · 2026-04-15 19:12:28

$\left( \frac{r}{\sqrt{r^2-1}}, \frac{r}{\sqrt{r^2+1}} \right)$ are roots of the equation $x^2 - bx + 3 = 0$. What is the value of $b$?

score 124 · Answer 10 · 2026-04-12 08:03:50

124

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Find parameter of quadratic equation such that it is positive/negative on a range

Published on 12 Apr 2026 - 8:03

score 389 · Answer 11 · 2026-04-12 00:13:10

389

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Condition that a quadratic equation is positive/negative on infinite range

Published on 12 Apr 2026 - 0:13

score 62 · Answer 12 · 2026-04-16 15:54:47

62

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Proove that knowing that lines $y=a_1 x+b_1 x^2$ and $y=a_2 x+b_2 x^2$ coincide in every point we can infer that $a_1=a_2$ and $b_1=b_2$.

Published on 16 Apr 2026 - 15:54

score 351 · Answer 13 · 2026-04-11 09:37:59

351

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Is $y^2+f(y)b+c$ a quadratic equation?

Published on 11 Apr 2026 - 9:37

score 53 · Answer 14 · 2026-04-13 07:47:44

53

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How to find the smallest $a,b ∈ N$ that solve a single equation

Published on 13 Apr 2026 - 7:47

score 256 · Answer 15 · 2026-04-12 09:34:38

256

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How does one decide which inequality/equation should one solve, out of many, to get the solution set without any extraneous solutions?

Published on 12 Apr 2026 - 9:34

List Question

An inequality with $x,y,z \ge -1$ and $x+y+z=1$

Why does this alternative to the Quadratic Formula not always work? $x=\frac1a\left(-b+\sqrt{\frac12(b^2-2ac\pm b\sqrt{b^2-4ac})}\right)$

manipulation of quadratic equation from roots

Whats going on in this quadratic?

If $\alpha$ be a multiple root of the order 3 of the equation $x⁴+bx²+cx+d=0$ then $α= 8d/3c$

Don't understand the step in Deriving quadratic equation

Quadratic Functions: Does anyone know how to solve this?

Newton's Identity

$\left( \frac{r}{\sqrt{r^2-1}}, \frac{r}{\sqrt{r^2+1}} \right)$ are roots of the equation $x^2 - bx + 3 = 0$. What is the value of $b$?

Find parameter of quadratic equation such that it is positive/negative on a range

Condition that a quadratic equation is positive/negative on infinite range

Proove that knowing that lines $y=a_1 x+b_1 x^2$ and $y=a_2 x+b_2 x^2$ coincide in every point we can infer that $a_1=a_2$ and $b_1=b_2$.

Is $y^2+f(y)b+c$ a quadratic equation?

How to find the smallest $a,b ∈ N$ that solve a single equation

How does one decide which inequality/equation should one solve, out of many, to get the solution set without any extraneous solutions?

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