Solve 6x2 = 12x − 24.

A) the quantity of negative 2 plus or minus 3i square root 2 all over 2
B) 1 plus or minus i square root 3
C) the quantity of 2 plus or minus 3i square root 2 all over 2
D) 1 plus or minus 2i square root 10

Respuesta :

Answer: Option B ([tex]x=1[/tex]±[tex]i\sqrt{3}[/tex])


Step-by-step explanation:

1. To solve this problem you must use the Quadratic formula, which is used to solve quadratic equation. This formula is shown below:

[tex]x=\frac{-b+/-\sqrt{b^{2}-4ac}}{2a}[/tex]

2. Make the equation equal to zero. So, you must rewrite it as following:

[tex]6x^{2}-12x+24=0[/tex]

3. Now, you must substitute values. Then, you have:

[tex]a=6\\b=-12\\c=24[/tex]

 [tex]x=\frac{-(-12)+/-\sqrt{(-12)^{2}-4(6)(24)}}{2(6)}[/tex]

4. Then,you obtain the following result:

[tex]x=1[/tex]±[tex]i\sqrt{3}[/tex]