Question

Find the product of each pair of expression a^2+a+1 and a-1

Answer 1

Answer:

$(a^{2}+a+1) (a-1)\\a^{2}(a-1) + a(a-1) +1 (a-1)\\\a^{3} - a^{2} + a^{2} - a + a - 1\\\a^{3} - 1 (ans)$