Question

I think (a+b)^3 = a^3+3a^2b+3ab^2+b^3​

Answer 1

Answer:

A^3-3A^2B+3AB^2-2B^3

-> A^3-3A^2B+3AB^2-B^3-B^3

-> (A-B)^3-B^3

-> (A-B-B) {(A-B)^2+(A-B)B+B^2}

-> (A-2B) (A^2-2AB+B^2+AB-B^2+B^2)

-> (A-2B)(A^2-AB+B^2)

Step-by-step explanation:

pls follow tannuranna 59 in my following

Answer 2

Answer:

Yes, it is right.

Step-by-step explanation:

${(a + b)}^{3} = {a}^{3} + 3ab \: (a + b) \: + {b}^{3} \\ becomes..... \\ = {a}^{3} + 3 {a}^{2} b + 3a {b}^{2} + {b}^{2}$

Don't worry, your formula is correct.