Question

. If 3a + 5b + 4c = 0, show that :
27 a3 + 125b3 + 64c3 = 180 abc.​

Answer 1

Step-by-step explanation:

3a+5b+4c=0

then

(3a)^3+(5b)^3+(4c)^3=3×3a×5b×4c

27a^3+125b^3+64c^3=180abc