Question

y+z=4,yz=3,y3+z3=? if you know?

Answer 1

Step-by-step explanation:

(y+z)³=y³+z³+3×y×z(y+z)

(4)³=y³+z³+3×3×4

64=y³+z³+36

64-36=y³+z³

28= y³+z³