Answer:

or

Step-by-step explanation:
Hello!
Use the quadratic formula: 
First, let's convert our equation to standard form of a Quadratic: ax² + bx + c = 0
3x² = 80
3x² - 80 = 0
Note, thats the value of b will be 0, as there is no "bx"
Now, solve:
Plug in values
Simplify the radical (Discriminant)
Pull out perfect squares
Reduce factors
The solutions are 
ANsweer is 7/4 reduced it will be 1 and 3 fourths hope I was right.
Answer: -w(2w+7): -2w ^2 - 7w
Step-by-step explanation:
this helps (no play) = 121/200 = 0.6050
ifti doesn't I tried