SOLUTION: 25v2+4-20v

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Question 623418: 25v2+4-20v
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
A question wasn't asked so I'll just factor this for you.
25v2+4-20v
rewritten as (set it to zero):
25v2-20v+4=0
Let's use the quadratic formula:
v+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
Plug in the numbers:
v+=+%28-%28-20%29+%2B-+sqrt%28+%28-20%29%5E2-4%2A25%2A4+%29%29%2F%282%2A25%29+
v=2/5
Make sense?
RJ
www.math-unlock.com