Answer:
c. 43
d. 3x² + 5x + 8
Step-by-step explanation:
Part c.
To find the perimeter if x = 2, we need to replace x by 2 on the given expression, so
P = 12x + 19
P = 12(2) + 19
P = 24 + 19
P = 43
So, the perimeter is 43.
Part d.
If a = x², b = 4x + 8, c = 2x², and d = x, the perimeter of the figure will be
P = a + b + c + d
P = x² + (4x + 8) + 2x² + x
P = (x² + 2x²) + (4x + x) + 8
P = 3x² + 5x + 8
So, the perimeter is 3x² + 5x + 8