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September 19, 2014

September 19, 2014

Posted by **rr.** on Wednesday, September 11, 2013 at 8:10pm.

a^4-256

I know that 4^4=256, but I don't know what to do with this ..

- Math -
**bobpursley**, Wednesday, September 11, 2013 at 8:18pm(a^2-16)(a^2+16)

(a-4)(a+4)(a^2+16)

now, if you include imaginary numbers, letting j = sqrt(-1), then

(a-4)(a+4)(a+4j)(a-4j)

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