Question

find the answer of question​

Answer 1

$\sf3x + 2y = 14$

cubing on both sides

$\sf{{(3x + 2y)}^{3} = {14}^{3} }$

(3x)³ + (2y)³ + 3(3x + 2y)(3x × 2y) = 2744

27x³ + 8y³ + 3(14)(6xy) = 2744

27x³ + 8y³ + 3(14)(6)(8) = 2744

27x³ + 8y³ + 2016 = 2744

27x³ + 8y³ = 2744 - 2016

27x³ + 8y³ = 728