Final answer:
After various attempts at adding grouping symbols to the equation 5 x 4 ÷ 3² - 4, it seems it is not possible to arrive at a result of 4. Additional context or operations might be necessary to find a correct arrangement.
Step-by-step explanation:
To make the equation 5 x 4 ÷ 3² - 4 = 4 true using grouping symbols, we need to determine where the parentheses can be placed to change the order of operations in a way that the final result is 4. Let's take the original expression and try adding parentheses:
(5 x 4) ÷ (3²) - 4
=(20) ÷ (9) - 4
=20 ÷ 9 - 4
=≈ 2.22 - 4
=≈ -1.78 (which does not equal 4)
This attempt does not give us the correct answer. Let's try a different way:
5 x (4 ÷ 3²) - 4
=5 x (4 ÷ 9) - 4
=5 x ≈ 0.44 - 4
=≈ 2.22 - 4
=≈ -1.78 (again, not equal to 4)
Both attempts are not yielding the correct result of 4. After various attempts to group elements of the equation, it becomes apparent that it is not possible to make the equation true by simply adding parentheses. Further context or additional operations may be necessary to solve the equation correctly.