1.a. terms 12x2yz and -4xy numerical coefficients= 12 and -4 literal coefficients= x2yz and xy2
b. terms 8,mn,nl,-lm numerical coefficients = 8 literal coefficients= mn, al, lm
c. terms x2/3, y/6, -xy2 numerical coefficients= dk literal coefficients= dk
d. terms -4p,2.3q,1.7r numerical coefficients= -4,2.3,1.7 literal coefficients= p, q, r
