A. X3−0, 25X=0A. X(X−1)+X−1=0B. 2 (3X X− − −5) (5 3 ) 0X =B. 3(X−3)−4X...

4. Tìm x:

a.

x

3

0, 25

x

=

0

a.

x

(

x

1

)

+

x

1

=

0

b.

2 (3

x x

− − −

5) (5 3 ) 0

x

=

b.

3

(

x

3

)

4

x

+

12

=

0

c.

49

x

2

+

14

x

+

1

=

0

c.

x

3

5

x

=

0