For this case we have the following quadratic equation:
![x ^ 2 + 7x + 9 = 3](https://tex.z-dn.net/?f=x%20%5E%202%20%2B%207x%20%2B%209%20%3D%203)
We must rewrite the equation as:
![ax ^ 2 + bx + c = 0](https://tex.z-dn.net/?f=ax%20%5E%202%20%2B%20bx%20%2B%20c%20%3D%200)
So:
Subtracting 3 from both sides of the equation we have:
![x ^ 2 + 7x + 9-3 = 0\\x ^ 2 + 7x + 6 = 0](https://tex.z-dn.net/?f=x%20%5E%202%20%2B%207x%20%2B%209-3%20%3D%200%5C%5Cx%20%5E%202%20%2B%207x%20%2B%206%20%3D%200)
So we have to:
![a = 1\\b = 7\\c = 6](https://tex.z-dn.net/?f=a%20%3D%201%5C%5Cb%20%3D%207%5C%5Cc%20%3D%206)
Answer:
![x ^ 2 + 7x + 6 = 0](https://tex.z-dn.net/?f=x%20%5E%202%20%2B%207x%20%2B%206%20%3D%200)
Answer:
-4
Step-by-step explanation:
Step-by-step explanation:
set up a proportion for a.
225/30=x/195. x=1462.5 milligrams daily
for b, if he gets 700 mg every 8 hours he only gets it 3 times a day. 700*3 is 2100, which means he is overdosing
Answer: a
Step-by-step explanation: