" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
= 9p^ - 18p +9 - 2(4p^ - 4p +1)
= 9p^ - 18p + 9 - 8p^ + 8p - 2
= p^ - 10p + 7
= (9p^-9p-9p+9)-2(4p^-2p-2p+1)
= (9p^-18p+9)-2(4p^-4p+1)
=9p^-18p+9-8p^+8p-2
=p^+10p+7