What is a 3 a^3 ?

Algebra Level pending

If a 2 = a + 2 a^2 = a + 2 , which of the following is equal to a 3 a^3 ?

a + 4 2a + 8 4a + 8 27a + 8 3a + 2

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1 solution

Tiong Sieh
Jan 14, 2016

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