Question

If 3x+2y=12 and xy=6,find 27x^3+8y^3

Answer 1

Solution is attached Just put values of 3x+2y=12 and xy = 6 Last eq in given solution is = (3x+2y)(9x^2-6xy+4y^2) => 12(9x^2-6(6)+4y^2) => 12(9x^2-36+4y^2) , ans