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January 25, 2015

January 25, 2015

Posted by **Awe** on Tuesday, January 21, 2014 at 2:41pm.

- maths -
**Damon**, Tuesday, January 21, 2014 at 2:46pma + ar + a r^2 + a r^3 + a r^4

ar = -4

a r^4 = 32

a = -4/r

(-4/r) r^4 = 32

r^3 = -8

so r = -2

and a = 2

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