(a^3 - b^3) ÷ (a - b) is equal to : 1. a^2 + b^2 + ab 2. a^2 + b^2 - ab 3. a^2 - b^2 + ab 4. a^2 - b^2- ab

(a 3 \- b 3 ) ÷ (a \- b) [∵ As we know, (x 3 \- y 3 ) = (x \- y)(x 2 \+ y 2 \+ xy)] ∴ (a 3 \- b 3 ) ÷ (a \- b) = = = (a 2 \+ b 2 \+ ab) Hence, option 1 is the correct option.