What are the solutions to the equation completesquare x^2+4x+20 ?

The solutions to the equation completesquare x^2+4x+20 are (x+2)^2+16

Find the zeros of completesquare x^2+4x+20

The zeros of completesquare x^2+4x+20 are (x+2)^2+16

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

complete the square

x^{2} + 4 x + 20

(x + 2)^{2} + 16

Solution steps

x^{2} + 4 x + 20

Write

x^{2} + 4 x + 20

in the form:

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

2 a = 4 : a = 2

Add and subtract

2^{2}

x^{2} + 4 x + 20 + 2^{2} - 2^{2}

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

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

(x + 2)^{2} + 20 - 2^{2}

Simplify

(x + 2)^{2} + 16

x^{2} = 4

5 x^{2} = 12 x + 4

h^{2} = 4^{2} + 3^{2}

- 2 x^{2} + 6 x - 4 + 6 x + 7 x^{2} - 9 - 6 x^{2} = 2 + 4 x

x^{2} + 9 x + 8 = 0

What are the solutions to the equation completesquare x^2+4x+20 ?
The solutions to the equation completesquare x^2+4x+20 are (x+2)^2+16
Find the zeros of completesquare x^2+4x+20
The zeros of completesquare x^2+4x+20 are (x+2)^2+16