4x^2 - 42 ÷ y - (10 + 13)

Answer 1

The expression 4x^2 - 42 ÷ y - (10 + 13) can be simplified as follows:

First, simplify the expression inside the parentheses:
10 + 13 = 23

Next, divide 42 by y:
42 ÷ y = 42/y

The expression now becomes:
4x^2 - 42/y - 23