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October 20, 2014

October 20, 2014

Posted by **Math is TOUGH** on Monday, November 15, 2010 at 4:51pm.

a. -1 is a zero

b. 1 is a zero

c. -2 is a zero

d. 2i is a zero

- algebra -
**bobpursley**, Monday, November 15, 2010 at 5:00pmf(-2)=-8+36-48+16=not zero

f(-1)=-1+9-24+16= zero, it is a zero.

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