Step-by-step explanation:
First we have to solve the products, divisions and powers in each term. The terms are separated by + or - signs. In this expression there are two terms.
In the first term there's a product inside a parenthesis. This means that we have to solve that first:
Now we can solve the multiplication in the first term:
Solve the power in the second term:
And do the substraction:
Answer:
1/2(4x5) - 2³ = 2