Question

a+b=4 a.b=5 halla a3 + b3

Answer 1

Respuesta :a^3+b^3=4

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

(4)^3=a^3+b^3+3(5)(4)

64=a^3+b^3+60

64-60=a^3+b^3

4=a^3+b^3