What are the solutions to the equation completesquare 5x^2+20x ?

The solutions to the equation completesquare 5x^2+20x are 5(x+2)^2-20

Find the zeros of completesquare 5x^2+20x

The zeros of completesquare 5x^2+20x are 5(x+2)^2-20

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

complete the square

5 x^{2} + 20 x

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

Solution steps

5 x^{2} + 20 x

Write

5 x^{2} + 20 x

in the form:

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

Factor out

5

5 (x^{2} + 4 x)

2 a = 4 : a = 2

Add and subtract

2^{2}

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

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

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

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

Simplify

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

8 z^{2} - 3 z - 2 = 0

x (2 x - 9) = - 10

m^{2} + 12 m = 52

y^{2} - 5 y = 14

2 x^{2} + 128 x - 4096 = 0

What are the solutions to the equation completesquare 5x^2+20x ?
The solutions to the equation completesquare 5x^2+20x are 5(x+2)^2-20
Find the zeros of completesquare 5x^2+20x
The zeros of completesquare 5x^2+20x are 5(x+2)^2-20