Answer:
-3.8
Step-by-step explanation:
(2x-10)/4 = 3x
2x - 10 = 12x
10x = -10
x = -1
Umm... true....? I think thats right...
You want to put this in the form (x+b)^2 + c
To do this take half of the coefficient of b from the ordinal form which is 6/2=3 as use this as your new b
This give you (x+3)^2.
If you foil this out you get x^2 +6x +9 so you have added 9 to the original expression so now all you need to do is subtract 9 to keep things balanced
The final expression then is (x+3)^2 -9
<u> So c= -9</u>