de

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Beliebt Algebra >

completesquare x^2+3x+8

Lösung

vervollständige das quadrat

x^{2} + 3 x + 8

Lösung

(x + \frac{3}{2})^{2} + \frac{23}{4}

Schritte zur Lösung

x^{2} + 3 x + 8

Schreibe

x^{2} + 3 x + 8

in dieser Form:

x^{2} + 2 a x + a^{2}

2 a = 3 : a = \frac{3}{2}

Addiere und subtrahiere

(\frac{3}{2})^{2}

x^{2} + 3 x + 8 + (\frac{3}{2})^{2} - (\frac{3}{2})^{2}

x^{2} + 2 a x + a^{2} = (x + a)^{2}

x^{2} + 3 x + (\frac{3}{2})^{2} = (x + \frac{3}{2})^{2}

(x + \frac{3}{2})^{2} + 8 - (\frac{3}{2})^{2}

Vereinfache

(x + \frac{3}{2})^{2} + \frac{23}{4}

Graph

Beliebte Beispiele

solvefor x,f=4x^2-4xy+y^2

so l v e f or x, f = 4 x^{2} - 4 x y + y^{2}

completesquare x^2+3x-7

co m pl e t es q u a re x^{2} + 3 x - 7

solvefor x,-x^2-y^2=0

so l v e f or x, - x^{2} - y^{2} = 0

7 x^{2} + 9 x - j = 0

- 4 x^{2} - 6 x + 2 = 0