Answer:
the awnser is 81 because 9x9 is 81
We can start with the first two sets
(x+3i)(x-3i) = x²-9i² then simplify it to x²+9
multiply the next two
(x+1)(x-1) = x²-1
then multiply those two together
(x²+9)(x²-1) = x∧4-x²+9x²-9
combine like terms x∧4+8²-9
that is your answer
Answer:
is this a multiple choice question?
Step-by-step explanation:
Answer:
Well thats not good
Step-by-step explanation:
is this a test? i like tests.
Answer:
K = 51/3.
Step-by-step explanation:
K = 51/3.
K = 17.
