Question

if 5x+3y=16 and xy=2 find the value of 125x ^3​

Answer 1

Answer:

125x³+27y³=2656

Step-by-step explanation:

5x+3y=16

Cubing on both the sides

(5x+3y)³=(16)³

(5x)³+(3y)³+3(5x)(3y)(5x+3y)=4096

125x³+27y³+(45xy)(16)=4096

125x³+27y³+(45)(2)(16)=4096

125x³+27y³+1440=4096

125x³+27y³=4096-1440

125x³+27y³=2656

Answer 2

Answer:

hope my attachment answer is correct