week 3 in math 10

(-3m2n3)2 (-2m3n) 3(1/72m2n3)

Use PP -3m2n3 must be multiplied 2 times and -2m3n must be multiplied 3 times, but 1/72m2n3 does need to (Because there is no exponent, and that is same as that there is 1).

(9m4n6) (-8m9n3)(1/72m2n3)

It can be multiplied with same bases.


And it can be divided

-m13-2n9-3= -m11n6

We can get the results that a is -1, b is 11, and c is 6, so -1+11+6 is equal to 16