Answer:
221
Step-by-step explanation:
C. 42x² - 3x - 9
Area:
(7x + 3) (6x - 3)
7x(6x - 3) + 3(6x - 3)
42x² - 21x + 18x - 9
42x² - 3x - 9
180 = 132 + x + x
180 - 132 = 2x
48 = 2x
x = 24⁰