x^3 + y^3 = (x + y)^3 - 3xy(x + y) = 10^3 - 3 \cdot 21 \cdot 10 = 1000 - 630 = 370 - AMAZONAWS
Understanding the Identity: x³ + y³ = (x + y)³ − 3xy(x + y) Applied to a Numerical Proof
Mar 11, 2026
Understanding the Identity: x³ + y³ = (x + y)³ − 3xy(x + y) Applied to a Numerical Proof
