if x = u^2 - v^2, y = 2uv, and z = u^2 + v2, and if x = 11, what is the value of z?
1) y = 60
2) u = 6
can you walk me through this? I understand B but was not sure how A is sufficient.
GMAT Forum
- by DanielS773
- Tue Mar 10, 2015 12:23 am
- Forum: GMAT Official Practice Test Math
- Topic: if x = u^2 - v^2, y = 2uv, and z = u^2 + v2, and if x = 11
- Replies: 20
- Views: 2004
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- by DanielS773
- Wed Mar 11, 2015 10:35 pm
- Forum: GMAT Official Practice Test Math
- Topic: if x = u^2 - v^2, y = 2uv, and z = u^2 + v2, and if x = 11
- Replies: 20
- Views: 2004
- Jump to post
Re: if x = u^2 - v^2, y = 2uv, and z = u^2 + v2, and if x = 11
still not sure i understand. can you walk me through steps to get to each answer?
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