3x²–243=0 —> 3 (x²–81) = 0 —>
x²–81=0 —> (x-9)(x+9)=0
x-9=0 —> x=9
x+9=0 —> x=–9
I hope I helped you^_^
Answer:
what's the problem to your question?
Answer:
22, I think
Step-by-step explanation:
You count all the squares on all of the faces.
So you count the two on the top and double it for the bottom, so four
Then, on the sides you have three so you double that and get six
Next, you double the six squares on the other side and get twelve.
Lastly, you add them up!
4 + 6 + 12
Hope this helps!
Answer:
it would be a close to $20
