Question

pls tell me this question fast with full method fast frnds plsss, ​

Answer 1

Answer:

27a³+64b³+108a²b+144ab²

Step-by-step explanation:

(3a+4b)³

identity =( a+b )³= a³+b³+3ab(a+b)

(3a)³+(4b)³+3x3ax4b(3a+4b)

27a³+64b³+36ab(3a+4b)

27a³+64b³+108a²b+144ab²

Hope it helps

Answer 2

Answer:

27a^3 + 64b^3 + 144ab^2 + 108a^2b

Step-by-step explanation:

(3a + 4b) ^ 3

apply the identity -

(a+b) ^ 3 = a^3 + b^3 + 3ab^2 + 3a^2 b

(3a)^3 + (4b)^3 + 3 (3a) (4b )^2 + 3 (3a)^2 (4b)

27a^3 + 64b^3 + 144ab^2 + 108a^2b