SOLUTION: simplify: -18a^7b^3+9a^4b^2-63a^2b ___________ ___________ 9ab ^^^^ by the way that is a fraction bar

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: simplify: -18a^7b^3+9a^4b^2-63a^2b ___________ ___________ 9ab ^^^^ by the way that is a fraction bar      Log On


   

Question 1174999: simplify:
-18a^7b^3+9a^4b^2-63a^2b
________________________
9ab
^^^^ by the way that is a fraction bar
Found 2 solutions by MathLover1, ikleyn:
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

%28-18a%5E7%2Ab%5E3%2B9a%5E4%2Ab%5E2-63a%5E2%2Ab%29%2F%289ab%29....factor out 9ab


%28%289ab%29%28-2a%5E6%2Ab%5E2%2Ba%5E3%2Ab-7a%29%29%2F%289ab%29

%28cross%28%289ab%29%29%28-2a%5E6%2Ab%5E2%2Ba%5E3%2Ab-7a%29%29%2Fcross%28%289ab%29%29

%28-2a%5E6%2Ab%5E2%2Ba%5E3%2Ab-7a%29 ....factor out a

a%28-2a%5E5%2Ab%5E2%2Ba%5E2%2Ab-7a%29


Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
.

Simply saying,  divide every term of the numerator by 9;



then divide every term of the numerator by "a";



then divide every term of the numerator by "b".


That is all.