Answer:
arcPR=125
RQ=125
PR=30
AQ=4
im not done yet and im not sure if im right but hope this helps.
You're original equation has a -81, so the factored form will have to have a positive and negative multiplying one another to achieve that...
f(x) = x(x + 9)(x - 9)
3(y-7)
use distributive property
1.) 4.358898944
2.) 7.071067812
