Question

(ii) (a +13) (a - 8)​

Answer 1

Answer:

$a^2+105+904$

Step-by-step explanation:

$(a+113)(a-8)\\= a(a+113)-8(a+113)\\=a^2+113a-8a+904\\=a^2+105a+904$

Answer 2

Answer:

$=a^{2} + 5a -104$

Step-by-step explanation:

$(a +13) (a - 8)$

$=a(a-8)+13(a-8)$ multiply the brackets

$=a^{2} -8a+13a-104$

$=a^{2} + 5a -104$