Bài tập toán cơ bản số 33

Created by T. Madas
Question 24
Factorize each of the following quadratic expressions.

a) 6 x 2 + x − 12 = ( 2 x + 3)( 3x − 4 )
b) 6 x 2 + 11x − 10 = ( 2 x + 5 )( 3x − 2 )
c) 8 x 2 − 10 x − 3 = ( 4 x + 1)( 2 x − 3)
d) 8 x 2 + 14 x + 3 = ( 4 x + 1)( 2 x + 3)
e) 8 x 2 − 5 x − 3 = ( 8 x + 3)( x − 1)
f) 8 x 2 − 22 x + 5 = ( 4 x − 1)( 2 x − 5)
g) 8 x 2 − 6 x − 5 = ( 2 x + 1)( 4 x − 5 )
h) 8 x 2 + 3x − 5 = ( x + 1)( 8 x − 5)

Created by T. Madas


Created by T. Madas
Question 25
Factorize each of the following quadratic expressions.

a) 12 x 2 + 7 x + 1 = ( 3x + 1)( 4 x + 1)
b) 12 x 2 + 4 x − 1 = ( 6 x − 1)( 2 x + 1)
c) 12 x 2 + 5 x − 3 = ( 4 x + 3)( 3x − 1)
d) 12 x 2 − 17 x + 5 = (12 x − 5 )( x − 1)
e) 12 x 2 − 7 x − 5 = (12 x + 5 )( x − 1)
f) 12 x 2 + 5 x − 7 = ( x + 1)(12 x − 7 )
g) 12 x 2 − 16 x + 5 = ( 2 x − 1)( 6 x − 5 )
h) 12 x 2 − 13x − 4 = ( 4 x + 1)( 3x − 4 )

Created by T. Madas