Question

hallar el cubo de (3a mas 2b) siendo a=3 y b=5

Answer 1

$({3a + 2b})^{3} \\ ({3(3) + 2(5)})^{3} \\ ({9 + 10})^{3} \\ {9}^{3} - {3(9)}^{2} (10) + {3(9)(10)}^{2} - {10}^{3} \\ 729 - 2430 + 2700 - 1000 \\ - 1$