Final answer:
To simplify the expression A(x)−x(54−2x), expand the expression using the distributive property and combine like terms.
Step-by-step explanation:
To simplify the expression A(x)−x(54−2x), we can expand the expression using the distributive property:
A(x)−x(54−2x) = A(x)−54x+2x²
Next, we can combine like terms:
A(x)−54x+2x² = 2x²−54x+A(x)
The simplified form of A(x)−x(54−2x) is 2x²−54x+A(x).