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March 5, 2015

March 5, 2015

Posted by **LIZY** on Tuesday, March 26, 2013 at 10:55am.

7+5z^2=-8z

- MATH -
**Steve**, Tuesday, March 26, 2013 at 11:14amrearrange to the more usual form:

5z^2 + 8z + 7 = 0

the discriminant is 8^2-4*5*7 < 0

So, what does that tell you about the roots?

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