Posted by RNRH on Tuesday, February 22, 2011 at 3:35pm.
I don't know for sure since you didn't ask a question, but I assume you want to solve this equation.
Add 10z to both sides.
25z^2 + 10z = 0
Factor.
5z(5z +2) = 0
Solve each factor in relation to zero.
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