GCSE Maths Practice: algebraic-proof

Question 4 of 9

Practice expanding a binomial cubed.

\( \text{Prove that } (a + b)^3 = a^3 + 3a^2b + 3ab^2 + b^3. \)

Choose one option:

Carefully apply distributive property twice.

Binomial theorem for n=3: coefficients \(1,3,3,1\).