Question

sub 2a²b²c² from 7a²b²c²​

Answer 1

$\rm{7a^{2} b^{2} c^{2} -5a^{2} b^{2} c^{2} =(7-5)a^{2} b^{2} c^{2} }$

$\longrightarrow\rm{7a^{2} b^{2} c^{2} -5a^{2} b^{2} c^{2} =2a^{2} b^{2} c^{2} }$