how come I get different roots for

-5t^2 +25t -30 ?

by factorizing I get t=1 or t=-6

by -b formula I get t=2 or t=3?

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- December 1st 2009, 10:10 AMwolfhoundfinding roots
how come I get different roots for

-5t^2 +25t -30 ?

by factorizing I get t=1 or t=-6

by -b formula I get t=2 or t=3? - December 1st 2009, 10:19 AMCaptainBlack
- December 1st 2009, 10:22 AMwolfhound