Answer:

Step-by-step explanation:
the coordinates of midpoint is average of x value of endpoints and average of y value of endpoints
Step-by-step explanation:
length = (2x + 3) units
width = (x - 7) units
Area = 2( length × width)
Area = 2( (2x + 3) × (x - 7) )
Area = 2( 2x² - 14x + 3x - 21)
Area = 2 ( 2x² -11x - 21)
Area = 4x² - 22x - 42
Answer:
2x^2+3x+1
Step-by-step explanation:
FOIL
Answer:
c.
............
..............................
Step-by-step explanation:
