Step-by-step explanation:
(x-9)²
= (x-9)(x-9)
= x²-9x-9x+81
= x²-18x+81
Answer:
the second one is your answer
Step-by-step explanation:
hope this helped mark me brainlest pls and thank you
Would have to be C due to all the other numbers not adding up to be a right angle