Inga is solving 2x2 + 12x – 3 = 0. Which steps could she use to solve the quadratic equation? Check all that apply. 2(x2 + 6x + 9) = 3 + 18 2(x2 + 6x) = –3 2(x2 + 6x) = 3 x + 3 = 2(x2 + 6x + 9) = –3 + 9 (x + 3)2 =

Respuesta :

Step 1,3 ,4 are the answers in edgenuit

Answer: The required steps are,

[tex]2(x^2+6x)=3[/tex]

[tex]2(x^2+6x+9)=3+18[/tex]

Step-by-step explanation:

Here, the given quadratic equation is,

[tex]2x^2+12x-3=0[/tex]

For solving the above equation, the steps are as follow,

Step 1 :

[tex]2x^2+12x-3=0[/tex]

Step 2 :

[tex]2x^2+12x=3[/tex]

Step 3 :

[tex]2(x^2+6x) =3[/tex]

Step 4 :

[tex]2(x^2+6x+9)=3+18[/tex]

Step 5 :

[tex](x+3)^2=\frac{21}{2}[/tex]

Step 6 :

[tex]x+3=\pm \sqrt{\frac{21}{2}}[/tex]

Step 7 :

[tex]x=-3 \pm \sqrt{\frac{21}{2}}[/tex]

Thus, by the above explanation we can find out the equations that will be used to solve the given quadratic equation.

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