Question

(a3-b3)/(a-b),where a=5,b=2​

Answer 1

Answer:

Step-by-step explanation:

(a^3 - b^3)/(a - b)

(a-b)(a^2 + ab + b^2)/(a-b) {Since a^3 - b^3 = (a-b)(a^2 + ab + b^2)}

= a^2 + ab + b^2

= 5^2 + 5x2 + 2^2

= 25 + 10 + 4

= 39