Question

x2-9 and x2-6x+9 find the hcf​

Answer 1

Answer:

Step-by-step explanation:

1st exp=x2-9

         =(x+3)(x-3)

2nd exp=x2-6x+9

           =x2-3x-3x+9

              =x(x-3)-3(x-3)

             =(x-3)(x-3)

hcf=(x-3)

Answer 2

Answer:

(x-3)

Step-by-step explanation:

x²-9 =(x-3)(x+3)

x²-6x+9 = (x-3)(x-3)

H.C.F = (x-3)

Used formula :- x²-9 =(x-3)(x+3)

a²-b² = (a-b)(a+b)

x²-6x+9 = x²-3x-3x+9

= x(x-3)-3(x-3)

= (x-3)(x-3)

Hope it will be helpful

thanku