Question

3a^2c-3c^3=3c(a^2-c^2)

Answer 1

3сa^2-3c^3=3c(a^2-c^2)

3сa^2-3c^3=3ca^2-3c^2

3сa^2-3са^2=3c^3-3c^3

0=0

 

Answer 2

$3a^{2}c-3c^{3}=3a^{2}c-3c^{3}, 3a^{2}c-3c^{3} -3a^{2}c +3c^{3}=0$

0=0