Answer:
Solution : - 20
Explanation:
We have the following expression to simplify,
![\left\{\left[(\left(3+5\right))/(2)\right]^2-\left(3\cdot 2\right)\right\}\cdot \left(-2\right)](https://img.qammunity.org/2021/formulas/mathematics/college/mbgd6c8ypzzoyswsts6rkwhbyw55ymvgyy.png)
Let's start by simplifying simple expressions, such as 3 + 5 = 8 and 3 * 2 = 6. Substituting we receive,
![\left\{\left[(\left(8\right))/(2)\right]^2-\left(6\right)\right\}\cdot \left(-2\right)](https://img.qammunity.org/2021/formulas/mathematics/college/lyb3yo7j5sgubfdto4fke6clxg53dbxu5w.png)
8 / 2 = 4, and 4² = 16 -
![\left\{16-\left(6\right)\right\}\cdot \left(-2\right)](https://img.qammunity.org/2021/formulas/mathematics/college/tfhaw5hl3pwrxt4u0sacqafinkro5jhf8i.png)
And of course 16 - 6 = 10, simplifying the expression to " - 2
10 " leaving us with a solution of - 20.