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 =

Step 1,3 ,4 are the answers in edgenuit

The required steps are,

Step-by-step explanation:

Here, the given quadratic equation is,

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

Step 1 :

Step 2 :

Step 3 :

Step 4 :

Step 5 :

Step 6 :

Step 7 :

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

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

1/2(2*4)=6 $$- agahajakanajak