Solvex - 8x = 3 by completing the square. Which is the solution set of the equation?

x = 4±sqrt (19)

Step-by-step explanation:

Assuming you meant x^2 - 8x = 3

Take the coefficient of x

-8

Divide by 2

-8/2 = -4

Square it

(-4) ^2 = 16

Add this to each side

x^2 - 8x + 16 = 3+16

The number inside the square term is the coefficient divided by 2

(x-4) ^2=19

Take the square root of each side

sqrt ((x-4) ^2=±sqrt (19)

x-4 = ±sqrt (19)

Add 4 to each side

x-4+4 = 4±sqrt (19)

x = 4±sqrt (19)