16*X² +81
The answer is 3
(4x+9i)(4x−9i) = (4x+9i)*4x -9i((4x+9i)) = 16x2 +36i -36i -81i2 = 16x² -81(-1)
= 16x² +81
Answer:
the ones are options 2 and 3
Answer:
260 gallons
Step-by-step explanation:
Hope it's correct
Step-by-step explanation:
Since the options are not clear enough, please kindly see the attached file for more explanation
Answer: 90 degree angle
if im wrong let me know please