Buddies help me:(
I am confused how to solve this identity:(​

Explanation:

Cubing something means we're multiplying it by itself three times

Something like m^3 means m*m*m

So (a+b)^3 means (a+b)*(a+b)*(a+b)

Let's focus on (a+b)*(a+b) for now. We would use the FOIL rule to find that

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

So we can say

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

Now let

c = a+b

that way we then have,

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

From here, distribute that 'c' through to each term

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

a^2*c + 2abc + b^2*c

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

Next, replace c with a+b and apply distribution three more times

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

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

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

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

You could also apply the Binomial Theorem to get the same result. The binomial coefficients can be computed through the combination formula, or through using Pascal's Triangle.

they can both be solutions depends on the equation

step-by-step explanation:

what is the equation? ?

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step-by-step explanation:

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