Answer:
x^2 + 7x + 3 in^2.
Step-by-step explanation:
The area of the whole frame = (5x + 3)(x + 6)
= 5x^2 + 33x + 18
So the area of the rim = 5x^2 + 33x + 18 - (4x^2 + 26x + 15)
= x^2 + 7x + 3 in^2.
Answer:
The trim area is x² + 7x + 3.
Step-by-step explanation:
First determine the area of the window frame. Then subtract the given glass area. The remainder is the area of the trim.
Area of window frame: (5x + 3)(x + 6) = 5x² + 33x + 18
Area of glass; 4x² + 26x + 15
Subtracting the glass area from the frame area, we get:
x² + 7x + 3
The trim area is x² + 7x + 3.
