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Jonnyd2
May 12, 2009, 05:51 AM
b^2+4b-21=0
What is the soultion for b
JoeCanada76
May 12, 2009, 06:02 AM
Sorry can not do your homework for you.
Capuchin
May 12, 2009, 06:38 AM
Factorise it.

Hint: -3+7=4; -3*7=-21