Answer:
a
Step-by-step explanation:
Greatest Common Factor is the "biggest" number that each have in common
20 a bbb + 16 aa b + a
the only thing all three have in commom is the "a"
okay so first we need to multiply 160 on both sides
{18/32(160)=n/160*160 (160 cancels out)}
so once we finish our calculations on the left side we get n equals 90
{n=90}
(-a^3b^2*-a^-2b^-3)^-2/2a^2b^-3
= a^4b^9/2a^8b^4
=b^5/2a^4
so your answer is b^5/2a^4
Answer:
The fraction -31/8 cannot be simplified.