Question

formula of (a+b)^3. can anybody answer please?​

Answer 1

Answer:

a² + b³ + a³b^4

Step-by-step explanation:

(a + b)³

like this : (a + b)(a + b)(a + b)

Then group: : (a + b)(a + b) and split the first two bracket

=a(a+b) +b(a+b) multiply

= a² +ab + ab + b²-(after that, introduce the third bracket)

=a² +ab + ab + b²(a + b)- open bracket

= a² + ab + ab +ab² + b³

∴ you collect like terms = a² + b³ +ab +ab + ab²

Then, final answer = a² + b³ + a³b^4