Answer:
im pretty sure the answers are
6) c
7) c
8) c
9) a
Step-by-step explanation:
a) (2a - b)² = (4a² - 4ab + b²)
b) (10m - n²)² = (100m² - 20mn² + n⁴)
c) (4x - 4²) = (16x² - 8x + 4⁴)
d)
e)
f)
CHINA