Question

Give the expansion of (a+b)^3

Answer 1

Heya mate,
here is your answer,

The expansion of (a+b)³ is

(i) a³+b³+3a²b+3ab²
(ii) a³+b³+3ab(a+b)
(iii) (a+b)(a+b)²
(iv) (a+b)(a²+2ab+b²)
(v) a(a²+2ab+b²)+b(a²+2ab+b²)


these are the expansions i knew.

Hope this helps

if you have any doubt or want any help you can ask me. i would like to help.

Thank you

#Sneha
brainly benefactor

Answer 2

$(a + b) {}^{2} \times (a + b) \\ (a {}^{2} + 2ab + b {}^{2} )(a + b) \\ a(a {}^{2} + 2ab + b {}^{2} ) + b(a {}^{2} + 2ab + b {}^{2} ) \\ a {}^{3} + 2a {}^{2} b + ab {}^{2} + a {}^{2} b + 2ab {}^{2} + b {}^{3 } \\ a {}^{3} + 3a {}^{2} b + 3ab {}^{2} + b {}^{3}$