Question

(a+b)^3= ?
give the correct answer ​

Answer 1

(a – b)3 = a3 – 3a2b + 3ab2 – b3. (a – b)3 can be written as. (a – b)3 = (a – b) . ( a – b)2. (a – b)3 = (a – b) [a2 + b2 -2ab]

Answer 2

Answer:

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

Step-by-step explanation:

it is easy to prove,

a+b^3

(a+b)(a+b)(a+b)

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

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

a^3 + a^2b+2a^2b+2ab^2+ab^2+b^3

so,

a^3+ 3a^2b+3ab^2+b^3

thank you