Answer:
-3
Step-by-step explanation:
![6x^2+36x+54=0](https://tex.z-dn.net/?f=6x%5E2%2B36x%2B54%3D0)
First, you can factor out a 6:
![6(x^2+6x+9)=0](https://tex.z-dn.net/?f=6%28x%5E2%2B6x%2B9%29%3D0)
Next, you can factor the quadratic:
![6(x+3)^2=0](https://tex.z-dn.net/?f=6%28x%2B3%29%5E2%3D0)
Since the only value of x that could set this equation equal to 0 is -3, that is the answer. Hope this helps!
Answer:
Step-by-step explanation:
V≈24543.69
Answer:
550km/h
Step-by-step explanation:
v (speed) = d/t
v = 1375/2.5
v =550
Answer:
Factor: (x+1) (x+3)
Step-by-step explanation: