Question

Determine algebraically if the function $f(x) = x^2 + 4x$ is onto or not

score 106 · Answer 1 · 2016-09-12 22:29:17

106

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Determine algebraically if the function $f(x) = x^2 + 4x$ is onto or not

Published on 12 Sep 2016 - 22:29

score 1k · Answer 2 · 2016-09-13 17:01:42

1k

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Typical angle in quadratic equations

Published on 13 Sep 2016 - 17:01

score 131 · Answer 3 · 2026-03-28 23:58:45

131

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Solve for $k$ in the equation ${\sqrt{k + \sqrt{x-k}}} -x = 0$

Published on 28 Mar 2026 - 23:58

score 5.1k · Answer 4 · 2016-09-14 20:15:45

5.1k

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Find quadratic equation with a complex root

Published on 14 Sep 2016 - 20:15

score 846 · Answer 5 · 2016-09-15 04:48:21

846

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Prove that if $p$ and $q$ are odd numbers then $x$ is not a rational number in $x^2 + 2px +2q=0$

Published on 15 Sep 2016 - 4:48

score 3.1k · Answer 6 · 2016-09-15 12:14:18

If $\alpha$ and $\beta$ are zeros of the polynomial $4x^2 -x -4$, find the quadratic whose zeros are $\frac{1}{2\alpha}$ and $\frac{1}{2\beta}$.

score 66 · Answer 7 · 2016-09-15 13:35:16

66

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Acceleration using time and distances

Published on 15 Sep 2016 - 13:35

score 26.8k · Answer 8 · 2016-09-15 13:55:14

26.8k

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Solving for all values of k if a quadratic equation containing it has two distinct real roots

Published on 15 Sep 2016 - 13:55

score 56 · Answer 9 · 2016-09-15 20:55:40

56

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Difficulty ensuring system has one solution

Published on 15 Sep 2016 - 20:55

score 141 · Answer 10 · 2016-09-16 16:42:21

141

Views

Find value from given quadratic equation.

Published on 16 Sep 2016 - 16:42

score 437 · Answer 11 · 2016-09-17 04:25:37

437

Views

Solve for $x$ in $e^{2x}-21e^x+110=0$

Published on 17 Sep 2016 - 4:25

score 362 · Answer 12 · 2016-09-17 08:58:24

362

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Find all real pairs $(x,y)$ that satisfy the equation $5x^2 + 5y^2 + 8xy + 2y - 2x + 2 = 0$

Published on 17 Sep 2016 - 8:58

score 77 · Answer 13 · 2026-03-27 13:39:56

77

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Intuitive understanding of a quadratic + linear equation graphically

Published on 27 Mar 2026 - 13:39

score 666 · Answer 14 · 2026-03-25 20:25:46

666

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About the Golden Ratio Conjugate

Published on 25 Mar 2026 - 20:25

score 6.7k · Answer 15 · 2016-09-19 11:50:16

6.7k

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Find the range of values of $k$ such that $kx^2+8x+3k<2$ for all real values of $x$

Published on 19 Sep 2016 - 11:50

List Question

Determine algebraically if the function $f(x) = x^2 + 4x$ is onto or not

Typical angle in quadratic equations

Solve for $k$ in the equation ${\sqrt{k + \sqrt{x-k}}} -x = 0$

Find quadratic equation with a complex root

Prove that if $p$ and $q$ are odd numbers then $x$ is not a rational number in $x^2 + 2px +2q=0$

If $\alpha$ and $\beta$ are zeros of the polynomial $4x^2 -x -4$, find the quadratic whose zeros are $\frac{1}{2\alpha}$ and $\frac{1}{2\beta}$.

Acceleration using time and distances

Solving for all values of k if a quadratic equation containing it has two distinct real roots

Difficulty ensuring system has one solution

Find value from given quadratic equation.

Solve for $x$ in $e^{2x}-21e^x+110=0$

Find all real pairs $(x,y)$ that satisfy the equation $5x^2 + 5y^2 + 8xy + 2y - 2x + 2 = 0$

Intuitive understanding of a quadratic + linear equation graphically

About the Golden Ratio Conjugate

Find the range of values of $k$ such that $kx^2+8x+3k<2$ for all real values of $x$

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