Question

factorise by appropriate identities x square-9x+9​

Answer 1

Answer:

p (x) = x sq -9x +9

(x)sq -9x = -9

a=x , -2ab=9x , b=9/2

(x) sq -9x +(9/2) sq = -9+(9/2)sq

(x-9/2)sq = -9+81/4

(x-9/2) sq =45/4

x-9/2=± root 45/4

x = ± root 45/4 + 9

x = + root 45/4+9 , - root 45/4-9