Question

(a-b)=3 and ab=5 then a³-b³ =​

Answer 1

Answer:

Given =

a+b=5

ab=3

to find:

a^3+b^3

we know that,

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

5^3=a^3+b^3+3×3(5)

125=a^3+b^3+45

now,

a^3+b^3=125-45

=80

sorry for the previous one