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September 18, 2014

September 18, 2014

Posted by **Zachary Gellman** on Sunday, January 13, 2013 at 7:00pm.

z^4-14z^3+49z^2,3z^2-147 and 5z+35

- math -
**Reiny**, Sunday, January 13, 2013 at 9:03pmz^4-14z^3+49z^2

= z^2(z^2 - 14z+ 49)

= x^2(z-7)^2

3z^2-147

= 3(z^2 - 49)

= 3(z+7)(z-7)

5z + 35

= 5(z+7)

LCM = 15z^2(z+7)(z-7)^2

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