Question

please solve this attached question as soon as possible ​

Answer 1

Step-by-step explanation:

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

Answer 2

Answer:

$(a + b {)}^{3} = (a + b)(a + b)(a + b) \\ =( a(a + b) + b(a + b))(a + b) \\ = ({a}^{2} + ab + ab + {b}^{2}) (a + b) \\ = a( {a}^{2} + 2ab + {b}^{2} ) + b( {a}^{2} + 2ab + {b}^{2}) \\ = {a}^{3} + 2 {a}^{2}b + a {b}^{2} + {a}^{2} b + 2a {b}^{2} + {b}^{3} \\ = {a}^{3} + {b}^{3 } + 2 {a}^{2} b + {a}^{2} b + 2a {b}^{2} + a {b}^{2} \\ = {a}^{3} + {b}^{3} + 3 { a}^{2} b + 3a {b}^{2} \\ = {a}^{3} + {b}^{3} + 3ab(a + b) \\ hence \: \: \: \: proved$

I hope it will help you