de

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Beliebt Algebra >

completesquare-7-8x-x^2

Lösung

vervollständige das quadrat

- 7 - 8 x - x^{2}

Lösung

- (x + 4)^{2} + 9

Schritte zur Lösung

- 7 - 8 x - x^{2}

Schreibe in der Standard Form

a x^{2} + b x + c

- x^{2} - 8 x - 7

Schreibe

- x^{2} - 8 x - 7

in dieser Form:

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

Klammere aus

- 1

- (x^{2} + 8 x + 7)

2 a = 8 : a = 4

Addiere und subtrahiere

4^{2}

- (x^{2} + 8 x + 7 + 4^{2} - 4^{2})

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

x^{2} + 8 x + 4^{2} = (x + 4)^{2}

- ((x + 4)^{2} + 7 - 4^{2})

Vereinfache

- (x + 4)^{2} + 9

Graph

Beliebte Beispiele

2 x^{2} + 12 x = x^{2} + 8

25(3-5x)^2-4=12

25 (3 - 5 x)^{2} - 4 = 12

y^{2} + 2 y - 2 = 0

completesquare x^2+x+5

co m pl e t es q u a re x^{2} + x + 5

9(x^2-14)-12=-17

9 (x^{2} - 14) - 12 = - 17