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Algebra 11 Online
OpenStudy (alex_mattucci):

How do you know if a trinomial is a perfect square trinomial? For instance, which one of these... a. 49x2 - 28x + 16 b. 9a2 - 30a + 25 c. 25b2 - 45b - 81 d. 16x2 - 24x - 9

OpenStudy (anonymous):

if discriminant=0

OpenStudy (alex_mattucci):

what does that mean?

OpenStudy (anonymous):

ax^2+bx+c=0 discriminant=b^2-4ac

OpenStudy (alex_mattucci):

OK Thanks!

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