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brookegallagher
Coefficients are the numbers that go in front of a variable. If the equation is 3z²-z+7, then the coefficients are 3 and -1. 3 is the coefficient for z² and -1 is the coefficient for z. 

Hope this helps!

ljin3634
Since the equation is 3z²-z+7.........
 
The coefficients are........
 3 and -1.

3 is the coefficient for z².
-1 is the coefficient for z.