Let a=7pqr−8q+6 and b=10−4pqr+3q
According to the question,
b−a=(10−4pqr+3q)−(7pqr−8q+6)
b−a=10−4pqr+3q−7pqr+8q−6
b−a=4−11pqr+11q
Hence, this is the answer.
Subtract:
(a) 4ax from 8ax
(b) 7pqr from 12 pqr