
Bobosharif S. answered 05/22/18
Tutor
4.4
(32)
Mathematics/Statistics Tutor
9x2-3x 7x2
------------ ÷ ------------=
------------ ÷ ------------=
x2-10x+21 x2-14x+49 [restriction: x≠3, x≠7]
3x(3x-1) (x-7)2
= ------------x----------=
(x-3)(x-7) 7x2
= ------------x----------=
(x-3)(x-7) 7x2
3(3x-1)(x-7)
=---------------
7x(x-3)
=---------------
7x(x-3)
x≠0, x≠3