Question

a^3+b^3 =19 and a+b=1,then what is the value of ab​

Answer 1

hope this helps you.. :)

Answer 2

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

19=(1)3-3ab(1)

19=1-3ab

19-1=3ab

18/3=ab

6=ab