Question

Factorise please.....

$2a ^3 + 16b ^3 - 5a - 10b$

Ty...☺

Answer 1

=>2a³+16b²-5a-10b
=>2(a³+8b²)-5(a+2b)
=>2(a+2b)(a²+4b²-2ab)-5(a+2b)
=>(a+2b)(2a²+8b²-4ab-5)


Hope it helps you.....

Answer 2

$Heya \: User !!!$

$Here \: Is \: The \: Solution$

⤵⤵⤵

$Factorise -:$

_____________________

$2a ^3 + 16b ^3 - 5a - 10b$

$= 2(a ^3 + 8b ^3) - 5(a + 2b)$

$= 2[(a) ^3 + (2b) ^3] - 5(a + 2b)$

$= 2(a + 2b) (a ^2 - 2ab + 4b ^2) - 5(a + 2b)$

$Taking \: (a + 2b) \: common...$

$= (a + 2b) 2(a ^2 - 2ab + 4b ^2) - 5$

$= (a + 2b) (2a ^2 - 4ab + 8b ^2) - 5$

$= (a - 2b) (2a ^2 - 4ab + 8b ^2 - 5)$

$HOPE \: IT \: HELPS....$

☺✌