Tough Exponent Problem

[Guest]

= ?

Does anyone have a two minute solution for this baby?

A) 1

B) 9 - 4(sq. rt 5)

C) 18 - 4(sq. rt 5)

D) 18

E) 20

[Guest]

Highlight line below for answer

OA ANSWER: E

[Guest]

Does anyone have a two minute solution for this baby?


E) 20

just apply (a+b)^2
and (a-b) (a+b)
formula

[Guest]

Does anyone have a two minute solution for this baby?


E) 20

just apply (a+b)^2
and (a-b) (a+b)
formula

Can you elaborate a little please?

[Guest]

*******PAGING RON**********

[parvezshah]

Does anyone have a two minute solution for this baby?


Can you elaborate a little please?

Sorry dude very hard to draw and explain.
but hey you can check it at this link also
http://www.manhattangmat.com/forums/rt- ... -t530.html

[RonPurewal]

*******PAGING RON**********

check out the thread referenced in the post above this one. if you still don't understand the problem, then post back and i'll try to clear up any problems that may exist.

by the way, here's a radical sign. copy and paste it if you want to post:
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