Answer:
Hello!!! Princess Sakura here ^^
Explanation:
The first step you need to do is plug in the numbers...
![4(5)+(-4)](https://img.qammunity.org/2021/formulas/mathematics/high-school/9ls4pkubx8m544hi8v1kcmb4s94tgh6sa6.png)
Then you will distribute the positive 1 but that won't change much...
![4(5)-4](https://img.qammunity.org/2021/formulas/mathematics/high-school/41tbirr4kjmresok9e6r9tmyha5puqfedt.png)
Then you'll have to multiply the 4 and 5 to get....
Now from here should be a piece cake, so the answer is...
![16\\](https://img.qammunity.org/2021/formulas/mathematics/high-school/x95qyb3ag5dbo0xxkpjc6w31hb3c146dau.png)