Answer:
4 ( 5 - n )
Explanation:
The expression:
20 – 4n
Task: Rewrite the expression for the new weight as a product of two factors.
To do this we simply have to find the highest common factor (HCF) between 20 and 4n
20 = 4 * 5
4n = 4 * n
The HCF = 4
Expressing as a product of two factors;
4 ( 5 - n )