How do you multiply #4n ^ { 0} \cdot 4m ^ { - 3} n ^ { - 1}#?

2 Answers
Jan 25, 2018

#4m^-3n^-1#

Explanation:

Well, know that #n^0=1# for all #ninRR, n!=0#.

#:.4n^0=4#

#:.4n^0*4m^-3*n^-1=4*4m^-3n^-1#

The only like-terms left are the whole numbers, so we multiply them. #(4*4=16)#

#=16m^-3n^-1#

#16/(m^3n)#

Explanation:

Everything in this is multiplied since there's no addition or subtraction or division symbol.
So
1, 4 times 4 is 16
2. Anything to the power of 0 is 1, so you just kind of discard that thing since anything times 1 doesn't change.
3. Anything to the negative power just means that it is one over the thing, so #m^-3# becomes #1/m^3#

Put everything together, and you'll get the answer