Check the picture below.
Answer:
It's actually D (2x - 1)(x+1)
Step-by-step explanation:
Wave length = speed / frequency
Wave length = 3x10^8 / 4.11x10^4
Wave length = 7.299x10^3nm
espero y te sirva hay esta todo lo que necesitas
8x+4
4(2x+1)=8x+4
