Question

multiply:
(viii) (a2 + 2a + 4) (a - 2)​

Answer 1

Answer:

$( {a}^{2} + 2a + 4)(a - 2)$

$a( {a}^{2} + 2a + 4) - 2( {a}^{2} + 2a + 4)$

${a}^{3} + 2 {a}^{2} + 4a - {2a}^{2} - 4a - 8$

${a}^{3} + {2a}^{2} - {2a}^{2} + 4a - 4a - 8$

${a}^{3} - 8$

$ans. \: \: {a}^{3} - 8$

Hope it helps.