What are the solutions to the equation completesquare x^2-4x-8 ?

The solutions to the equation completesquare x^2-4x-8 are (x-2)^2-12

Find the zeros of completesquare x^2-4x-8

The zeros of completesquare x^2-4x-8 are (x-2)^2-12

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complete the square

x^{2} - 4 x - 8

(x - 2)^{2} - 12

Solution steps

x^{2} - 4 x - 8

Write

x^{2} - 4 x - 8

in the form:

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

2 a = - 4 : a = - 2

Add and subtract

(- 2)^{2}

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

Simplify

(x - 2)^{2} - 12

3 w^{2} = - 5 w - 2

x (x - 3) = 2

x (x - 3) = 1

x^{2} + 7 x + 1 = - 9

x, x^{2} - 6 x + y^{2} + 8 y + 25 = 0

What are the solutions to the equation completesquare x^2-4x-8 ?
The solutions to the equation completesquare x^2-4x-8 are (x-2)^2-12
Find the zeros of completesquare x^2-4x-8
The zeros of completesquare x^2-4x-8 are (x-2)^2-12