Question

if 2a + 5b + 3c = 0 then find the value of 8a3 + 125b3 + 27c3 - 90 abc​

Answer 1

hey may it helps you

plz follow me

Answer 2

0

Step-by-step explanation:

$if \: a + b + c + = 0 \\ then \: {a}^{3} + {b}^{3} + {c}^{3} - 3abc = 0 \\ \\ a = 2a \\ b = 5b \\ c = 3c \\ \\ {(2a)}^{3} + {(5b)}^{3} + {(3c)}^{3} - 3(2a)(5b)(3c) = 0 \\ {8a}^{3} + {125b}^{3} + {27c}^{3} - 3(2a)(5b)(3c) = 0 \\ {8a}^{3} + {125b}^{3} + {27c}^{3} - 90abc = 0$