Answer:
x²-9x-1
Step-by-step explanation:
move the -x² in front and get -x²+9x+1
then multiply the whole equation by -1 and get x²-9x-1
Answer: x^2 +9x+1
Step-by-step explanation: exponents go first (if there are more than 1, highest number to lowest), then x terms, then regular numbers
