Question

factor the expression 0.8z - 1.8. use 0.2 as the common factor. rewrite each term as a product of 0.2 and another term. 0.8z - 1.8 = 0.2 (◻z) - 0.2 (?)

Explanation:

Step1: Find the multiplier for the first - term

To rewrite $0.8z$ as $0.2$ times another term, we divide $0.8$ by $0.2$. So, $\frac{0.8}{0.2}=4$.

Step2: Find the multiplier for the second - term

To rewrite $1.8$ as $0.2$ times another term, we divide $1.8$ by $0.2$. So, $\frac{1.8}{0.2} = 9$.

Answer:

$0.8z−1.8 = 0.2(4z)-0.2(9)$