SOLUTION: I need this solved by factoring {{{ 7z^2+60z=-32 }}}

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Question 328287: I need this solved by factoring +7z%5E2%2B60z=-32+
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Solve by factoring:
7z%5E2%2B60z+=+-32 Add 32 to both sides.
7z%5E2%2B60z%2B32+=+0 Factor the trinomial.
%287z%2B4%29%28z%2B8%29 Apply the zero product rule.
7z%2B4+=+0 or z%2B8+=+0 so...
7z+=+-4 or highlight%28z+=+-8%29
highlight%28z+=+-4%2F7%29