What are the solutions to the equation completesquare 3x^2-12x ?

The solutions to the equation completesquare 3x^2-12x are 3(x-2)^2-12

Find the zeros of completesquare 3x^2-12x

The zeros of completesquare 3x^2-12x are 3(x-2)^2-12

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

complete the square

3 x^{2} - 12 x

3 (x - 2)^{2} - 12

Solution steps

3 x^{2} - 12 x

Write

3 x^{2} - 12 x

in the form:

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

Factor out

3

3 (x^{2} - 4 x)

2 a = - 4 : a = - 2

Add and subtract

(- 2)^{2}

3 (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}

3 ((x - 2)^{2} - (- 2)^{2})

Simplify

3 (x - 2)^{2} - 12

x^{2} + 5 x - 126 = 0

4 x^{2} - 28 x + 40 = 0

a^{2} = 2

2 x^{2} - 7 x + 15 = 0

x^{2} = 132

What are the solutions to the equation completesquare 3x^2-12x ?
The solutions to the equation completesquare 3x^2-12x are 3(x-2)^2-12
Find the zeros of completesquare 3x^2-12x
The zeros of completesquare 3x^2-12x are 3(x-2)^2-12