Question

find the value of a^3+b^3 if a+b =7 and ab=5​

Answer 1

Answer:

238

Step-by-step explanation:

(a+b)^3= a^3 + b^3+ 3ab(a+b)

7^3=  a^3  +  b^3  +  3*5*7

343=a^3  +  b^3 +  105

343-105 =  a^3  +  b^3

238