B
Step-by-step explanation:
16m² - 24mn²+ 9n⁴
(4m)² - 2(4m)(3n²) + (3n²)²
(4m - 3n²)²
search the worksheet up on the internet
step-by-step explanation:
it works trust me
x/3-10=8
x/3=18
x=48